This document provides service information for cleaning the hydraulic system on a 650L dozer. It defines contamination and lists potential problems it can cause, such as seal leaks and slow cycle times. It also describes microscopic and visible types of contamination. The document instructs technicians to use a portable filter to clean the system if contamination is found during inspection or causing issues. Thorough cleaning is important to prevent failures and maintain efficient hydraulic system operation.
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This document provides instructions for cleaning the primary hydraulic power system of a dozer. It describes two types of contamination that can occur in hydraulic systems: microscopic particles too small to see, and visible contamination. It lists several problems contamination can cause, such as leaks, slow movement, and rapid component wear. It instructs that if contamination is present, as identified by these issues, to use a portable filter to clean the hydraulic system. Thorough cleaning is important to prevent malfunctions and premature failure of hydraulic components.
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This document is a service manual for a Crawler Dozer 650L Tier3. It provides technical information on the distribution systems, primary and secondary hydraulic power systems, electrical power system, lighting system, fault codes, engine, fuel and injection system, air intake system, lubrication system, transmission, final drive, service brake, wheels and tracks, user controls and seat, user platform, environment control systems, safety and security accessories, lifting, tilting, swinging, digging tools, dozer blade, and more. The manual is divided into sections and chapters to organize information on the various components, with technical data, functional descriptions, service procedures, and diagnostics.
CASE 650L Tier3 Crawler Dozer Service Repair Manual.pdfu44yxxgx
This document provides instructions for cleaning the primary hydraulic power system of a dozer. It describes two types of contamination that can occur in hydraulic systems: microscopic particles too small to see, and visible contamination. It lists several problems contamination can cause, such as leaks, slow movement, and rapid component wear. It instructs that if contamination is present, as identified by these issues, to use a portable filter to clean the hydraulic system. Thorough cleaning is important to prevent malfunctions and premature failure of hydraulic components.
CASE 650L Tier3 Crawler Dozer Service Repair Manual.pdfpuwen21406974209
This document provides instructions for cleaning the primary hydraulic power system of a dozer. It describes two types of contamination that can occur in hydraulic systems: microscopic particles too small to see, and visible contamination. It lists several problems contamination can cause, such as leaks, slow movement, and rapid component wear. It instructs that if contamination is present, as identified by these issues, to use a portable filter to clean the hydraulic system. Thorough cleaning is important to prevent malfunctions and premature failure of hydraulic components.
Case 650 l tier3 crawler dozer service repair manualjfjkskefksmem
This document provides instructions for cleaning the hydraulic system of a dozer. It discusses two types of contamination - microscopic particles too small to see and visible contamination. It lists problems contamination can cause, such as leaks, slow movement, and rapid component wear. It instructs that if problems occur, check the oil for contamination and use a portable filter to clean the system if needed. Cleaning is important to prevent malfunctions in hydraulic components.
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The document is a service manual that covers hydraulic, pneumatic, electrical, and electronic systems for tractor models T6010 through T6070. It contains sections on primary and secondary hydraulic power systems, hydraulic command systems, electrical power systems, electronic systems, fault codes, engines, transmissions, axles, brakes, frames, cabs, hitches, and more. Each section contains technical data, functional descriptions, diagnostics, and service procedures.
New holland t6070 tractor service repair manualudjjsjkkddkmme
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This document provides instructions for cleaning the primary hydraulic power system of a dozer. It describes two types of contamination that can occur in hydraulic systems: microscopic particles too small to see, and visible contamination. It lists several problems contamination can cause, such as leaks, slow movement, and rapid component wear. It instructs that if contamination is present, as identified by these issues, to use a portable filter to clean the hydraulic system. Thorough cleaning is important to prevent malfunctions and premature failure of hydraulic components.
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Case 650 l tier3 crawler dozer service repair manualjfjkskefksmem
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New holland t6070 tractor service repair manualpfiskdmjekm
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New holland t6050 tractor service repair manualfujsjefkskekmem
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The document is a service manual that provides technical specifications, diagrams, and repair instructions for the hydraulic, pneumatic, electrical, and electronic systems of tractor models T6010 through T6070. It includes sections on the primary and secondary hydraulic power systems, hydraulic command system, electrical power system, electronic systems, and fault codes. The primary hydraulic power system section provides detailed information on fixed displacement pumps, variable displacement pumps, and charge pumps including technical specifications, diagrams of hydraulic circuits, and descriptions of component operation.
New holland t6030 tractor service repair manualsoeldksejdksem
The document is a service manual that covers hydraulic, pneumatic, electrical, and electronic systems for tractor models T6010 through T6070. It contains sections on primary and secondary hydraulic power systems, hydraulic command systems, electrical power systems, electronic systems, fault codes, engines, transmissions, axles, brakes, frames, cabs, hitches, and more. Each section contains technical data, functional descriptions, diagnostics, and service procedures.
New holland t6050 tractor service repair manualujdjjkkskmme
The document is a service manual that covers hydraulic, pneumatic, electrical, and electronic systems for tractor models T6010 through T6070. It contains sections on primary and secondary hydraulic power systems, hydraulic command systems, electrical power systems, electronic systems, fault codes, engines, transmissions, axles, brakes, frames, cabs, hitches, and more. Each section contains technical data, functional descriptions, diagnostics, and service procedures.
Komatsu WA470-3 Wheel Loader Service Repair Manual (WA470-3 Serial WA470H2005...zhan96lun
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Komatsu WA150PZ-5 Wheel Loader Service Repair Manual (SN H50051 and up).pdfzhan96lun
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2. Contents
INTRODUCTION
DISTRIBUTION SYSTEMS.............................................................A
PRIMARY HYDRAULIC POWER SYSTEM............................................... A.10.A
SECONDARY HYDRAULIC POWER SYSTEM........................................... A.12.A
ELECTRICAL POWER SYSTEM ......................................................... A.30.A
LIGHTING SYSTEM....................................................................... A.40.A
FAULT CODES ............................................................................ A.50.A
POWER PRODUCTION .................................................................B
ENGINE ................................................................................... B.10.A
FUEL AND INJECTION SYSTEM......................................................... B.20.A
AIR INTAKE SYSTEM..................................................................... B.30.A
LUBRICATION SYSTEM .................................................................. B.60.A
POWER TRAIN.............................................................................C
TRANSMISSION Hydrostatic.............................................................. C.20.F
TRAVELLING................................................................................D
Final drive ................................................................................. D.15.A
SERVICE BRAKE Hydraulic.............................................................. D.30.C
WHEELS AND TRACKS Tracks .......................................................... D.50.B
BODY AND STRUCTURE ..............................................................E
USER CONTROLS AND SEAT ........................................................... E.32.A
USER CONTROLS AND SEAT Operator seat ............................................ E.32.C
USER PLATFORM ........................................................................ E.34.A
ENVIRONMENT CONTROL Heating system ............................................. E.40.B
ENVIRONMENT CONTROL Air-conditioning system ..................................... E.40.C
ENVIRONMENT CONTROL Heating, ventilation and air-conditioning.................... E.40.D
SAFETY SECURITY ACCESSORIES Safety ............................................. E.50.B
TOOL POSITIONING.................................................................... G
LIFTING .................................................................................. G.10.A
84260831 21/08/2009
5. INTRODUCTION
Basic instructions
Technical Information
This manual has been produced by a new technical information system. This new system is designed to deliver
technical information electronically through CDROM and in paper manuals. A coding system called ICE has been
developed to link the technical information to other Product Support functions e.g. Warranty.
Technical information is written to support the maintenance and service of the functions or systems on a customers
machine. When a customer has a concern on his machine it is usually because a function or system on his machine
is not working at all, is not working efficiently, or is not responding correctly to his commands. When you refer to the
technical information in this manual to resolve that customers concern, you will find all the information classified using
the new ICE coding, according to the functions or systems on that machine. Once you have located the technical
information for that function or system then you will find all the mechanical, electrical or hydraulic devices, compo-
nents, assemblies and sub-assemblies for that function or system. You will also find all the types of information that
have been written for that function or system, the technical data (specifications), the functional data (how it works),
the diagnostic data (fault codes and troubleshooting) and the service data (remove, install adjust, etc.).
By integrating this new ICE coding into technical information , you will be able to search and retrieve just the right
piece of technical information you need to resolve that customers concern on his machine. This is made possible by
attaching 3 categories to each piece of technical information during the authoring process.
The first category is the Location, the second category is the Information Type and the third category is the Product:
• LOCATION - is the component or function on the machine, that the piece of technical information is going to
describe e.g. Fuel tank.
• INFORMATION TYPE - is the piece of technical information that has been written for a particular component or
function on the machine e.g. Capacity would be a type of Technical Data that would describe the amount of fuel
held by the Fuel tank.
• PRODUCT - is the model that the piece of technical information is written for.
Every piece of technical information will have those 3 categories attached to it. You will be able to use any combination
of those categories to find the right piece of technical information you need to resolve that customers concern on his
machine.
That information could be:
• the description of how to remove the cylinder head
• a table of specifications for a hydraulic pump
• a fault code
• a troubleshooting table
• a special tool
How to Use this Manual
This manual is divided into Sections. Each Section is then divided into Chapters. Contents pages are included at the
beginning of the manual, then inside every Section and inside every Chapter. An alphabetical Index is included at the
end of a Chapter. Page number references are included for every piece of technical information listed in the Chapter
Contents or Chapter Index.
Each Chapter is divided into four Information types:
• (D) Technical Data (specifications) for all the mechanical, electrical or hydraulic devices, components and, assem-
blies.
• (C) Functional Data (how it works) for all the mechanical, electrical or hydraulic devices, components and assem-
blies.
• (G) Diagnostic Data (fault codes, electrical and hydraulic troubleshooting) for all the mechanical, electrical or hy-
draulic devices, components and assemblies.
• (F) Service data (remove disassembly, assemble, install) for all the mechanical, electrical or hydraulic devices,
components and assemblies.
84260831 21/08/2009
3
6. INTRODUCTION
Sections
Sections are grouped according to the main functions or a systems on the machine. Each Section is identified by
a letter A, B, C etc. The amount of Sections included in the manual will depend on the type and function of the
machine that the manual is written for. Each Section has a Contents page listed in alphabetic/numeric order. This
table illustrates which Sections could be included in a manual for a particular product.
SECTION
A - Distribution Systems
B - Power Production
C - Power Train
D - Travelling
E - Body and Structure
F - Frame Positioning
G - Tool Positioning
H - Working Arm
J - Tools and Couplers
K - Crop Processing
L - Field Processing
PRODUCT
Tractors X X X X X X X X
Vehicles with working arms: backhoes,
excavators, skid steers, .....
X X X X X X X X X
Combines, forage harvesters, balers, .... X X X X X X X X X X
Seeding, planting, floating, spraying
equipment, ....
X X X X X X X X X
Mounted equipment and tools, ..... X X X X
Chapters
Each Chapter is identified by a letter and number combination e.g. Engine B.10.A The first letter is identical to the
Section letter i.e. Chapter B.10 is inside Section B, Power Production.
CONTENTS
The Chapter Contents lists all the (D) technical data (specifications), (C) functional data (how it works), (F) service
data (remove, install adjust, etc.) and (G) diagnostic data (fault codes and troubleshooting) that have been written in
that Chapter for that function or system on the machine.
Contents
POWER PRODUCTION
ENGINE _ 10.A
TECHNICAL DATA
ENGINE - General specification (B.10.A - D.40.A.10) 3
FUNCTIONAL DATA
ENGINE - Dynamic description (B.10.A - C.30.A.10) 4
SERVICE
ENGINE - Remove (B.10.A - F.10.A.10) 5
DIAGNOSTIC
ENGINE - Troubleshooting (B.10.A - G.40.A.10) 6
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4
7. INTRODUCTION
INDEX
The Chapter Index lists in alphabetical order all the types of information (called Information Units) that have been
written in that Chapter for that function or system on the machine.
Index
POWER PRODUCTION - B
ENGINE
ENGINE - Dynamic description (B.10.A - C.30.A.10) 4
ENGINE - General specification (B.10.A - D.40.A.10) 3
ENGINE - Remove (B.10.A - F.10.A.10) 5
ENGINE - Troubleshooting (B.10.A - G.40.A.10) 6
Information Units and Information Search
Each chapter is composed of information units. Each information unit has the ICE code shown in parentheses which
indicates the function and the type of information written in that information unit. Each information unit has a page ref-
erence within that Chapter. The information units provide a quick and easy way to find just the right piece of technical
information you are looking for.
example information unit Stack valve - Sectional View (A.10.A.18 - C.10.A.30)
Information Unit ICE code A 10.A 18 C 10.A.30
ICE code classification Distribution
systems
Primary
hydraulic
power
Stack valve Functional
data
Sectional view
CRIL03J033E01 1
Navigate to the correct information unit you are searching for by identifying the function and information type
from the ICE code.
• (1) Function and (2) Information type.
• (A) corresponds to the sections of the repair manual.
(B) corresponds to the chapters of the repair manual.
(C) corresponds to the type of information listed in the chapter contents, (D), Technical data, (C), Functional Data,
(G), Diagnostic, and (F), Service.
(A) and (B) are also shown in the page numbering on the page footer.
THE REST OF THE CODING IS NOT LISTED IN ALPHA-NUMERIC ORDER IN THIS MANUAL.
• You will find a table of contents at the beginning and end of each section and chapter.
You will find an alphabetical index at the end of each chapter.
• By referring to (A), (B) and (C) of the coding, you can follow the contents or index (page numbers) and quickly
find the information you are looking for.
84260831 21/08/2009
5
8. INTRODUCTION
Page Header and Footer
The page header will contain the following references:
• Section and Chapter description
The page footer will contain the following references:
• Publication number for that Manual, Section or Chapter.
• Version reference for that publication.
• Publication date
• Section, chapter and page reference e.g. A.10.A / 9
84260831 21/08/2009
6
10. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Special tools
RCPH09CWL005AAD 1
CAS1804 Hydraulic pressure fitting kit
RCPH09CWL006AAD 2
CAS1808 Flowmeter fitting kit
RCPH09CWL004AAD 3
CAS10090 Hand pump
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11. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
RCPH09CWL339AAD 4
CAS10280 Flowmeter
PRIMARY HYDRAULIC POWER SYSTEM - General specification
Type of oil CASE AKCELA AW68 HYD FLUID MAT 3508
Temperature of hydraulic oil when testing 52 - 79 °C (125 - 175 °F)
Neutral system pressure 12 - 15 bar (180 - 220 psi) at 2000 RPM
Main relief valve pressure
All models at 2000 RPM
203 - 214 bar (2950 - 3100 psi)
Circuit relief valves
A and B ports ripper/auxiliary section
214 - 227 bar (3100 - 3300 psi) with hand pump
Dozer blade lift speed 457 mm second (18 in second)
Dozer blade lift time (measure from ground level to full
height)
2 seconds
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12. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Stack valve - Torque
Special torques Nm lb
Bolts and nuts that fasten the sections
together
39 - 47 Nm 28.7 - 34.6 lb ft
Relief valves and load check valves 24 - 30 Nm 17.7 - 22 lb ft
Allen head screws 12 - 15 Nm 106 - 133 lb in
Centering spring screw 13 - 16 Nm 115 - 142 lb in
Stack valve - Special tools
RCPH09CWL075AAD 1
Centering spring compression tool
Stack valve - Calibration
Relief Valves bar psi
Main relief valve 203 - 214 bar 2950 - 3100 psi
Circuit relief valves tested with hand
pump
214 - 227 bar 3100 - 3300 psi
Stack valve - General specification
Spool travel MM Inch
Neutral to pressure - lift, tilt and
auxiliary
7.9 mm 0.31 in
Neutral to pressure - angle section 6.6 mm 0.26 in
Neutral to float - lift 13.5 mm 0.53 in
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13. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump - General specification
Rotation Clockwise as seen from end of shaft
Hydraulic pump output 72 l at 207 bar at 2000 RPM
19 US gpm at 3000 psi at 2000 RPM
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14. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Relief valve - Exploded view
BS99M034 1
(1) Cap (5) O-ring (9) Backup ring
(2) Lock nut (6) Spring (10) Poppet
(3) Spacer (7) Plunger (11) Housing
(4) Adjusting screw (8) Body
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15. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Relief valve - Sectional view
BS00A057 1
(1) Inlet port passage (4) Pilot passage poppet
(2) Return port passage (5) Jam nut
(3) Main relief poppet (6) Pressure adjusting screw
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16. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Stack valve - Exploded view
BC02J007 1
(1) Main relief valve (5) Dozer angle section
(2) Inlet secton (6) Ripper/auxiliary section
(3) Dozer lift section (7) Outlet section
(4) Dozer tilt section
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17. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Cleaning
1. Contamination in the hydraulic system is a major
cause of the malfunction of hydraulic components.
Contamination is any foreign material in the hydraulic
oil. Contamination can enter the hydraulic system in
several ways.
(A) When you drain the oil or disconnect any line.
(B) When you disassemble a component.
(C) From normal wear of the hydraulic components.
(D) From damaged or worn seals.
(E) From a damaged component in the hydraulic sys-
tem.
2. All hydraulic systems operate with some contami-
nation. The design of the components in this hy-
draulic system permits efficient operation with a small
amount of contamination. An increase in this amount
of contamination can cause problems in the hydraulic
system. The following list includes some of these
problems.
(A) Cylinder rod seals leak.
(B) Control valve spools do not return to neutral.
(C) Movement of control valve spools is difficult.
(D) Hydraulic oil becomes too hot.
(E) Pump gears, housing, and other parts wear
rapidly.
(F) Relief valves or check valves held open by dirt.
(G) Quick failure of components that have been re-
paired.
(H) Cycle times are slow; machine does not have
enough power.
3. If your machine has any of these problems, check
the hydraulic oil for contamination. See types of con-
tamination below. If you find contamination, use the
Portable Filter to clean the hydraulic system.
NOTE: There are two types of contamination, microscopic
and visible.
4. Microscopic contamination occurs when very fine
particles of foreign material are in suspension in the
hydraulic oil.
5. These particles are too small to see or feel. Micro-
scopic contamination can be found by identification
of the following problems or by testing in a laboratory.
Examples of the problems:
(A) Cylinder rod seal leak.
(B) Control valve spools do not return to NEUTRAL.
(C) The hydraulic system has a high operating tem-
perature.
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18. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
6. Visible contamination is foreign material that can be
found by sight, touch, or odor. Visible contamination
can cause a sudden failure of components. Exam-
ples of visible contamination:
(A) Particles of metal or dirt in the oil.
(B) Air in the oil.
(C) The oil is dark and thick.
(D)The oil has an odor of burned oil.
(E) Water in the oil.
NOTE: The hydrostatic system uses a third port bypass
filter system. If the filter becomes plugged it bypasses
back to the reservoir to stop contamination from entering
the hydrostatic system. Upon completion of cleaning the
hydraulic system replace the hydrostatic system filter.
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19. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Decontaminating
CAS10162A CAS10508 CAS10192
1. Prepare the portable filter CAS10162A by doing the
following steps:
(A) Remove all the hydraulic oil from the inlet and
outlet hoses for the portable filter.
(B) Remove the filter element from the portable filter.
(C) Remove all hydraulic oil from the portable filter.
(D) Clean the inside of the housing for the filter ele-
ment.
2. You must know whether the contamination is micro-
scopic or visible. Refer to PRIMARY HYDRAULIC
POWER SYSTEM - Cleaning (A.10.A).
3. If the contamination is microscopic:
(A) Check the maintenance schedule for the ma-
chine to learn if the hydraulic oil must be changed.
If needed, change the hydraulic oil. Change the hy-
draulic filter.
(B) Do steps 6 through 35.
4. If the contamination is visible:
(A) Change the hydraulic oil and hydraulic filter.
(B) Do steps 5 through 35.
5. Check the amount of contamination in the hydraulic
system by doing the following steps:
(A) Disassemble one cylinder in two different circuits.
Check for damage to seals, scoring of the cylinder
wall, etc. Repair the cylinders as necessary.
(B) If, in your judgment, the damage to the cylinders
was caused by sever contamination and is not the re-
sult of normal wear, it is necessary to remove, clean
and repair valves, pump, lines, cylinders, hydraulic
reservoir, etc. in the hydraulic system.
6. Remove the breather from the reservoir and connect
the vacuum pump to the opening. Start the vacuum
pump.
7. Loosen and remove the drain plug from the reservoir.
8. Using the fitting kit CAS10508, install the valve in the
hole for the drain plug. Make sure that the valve is
closed.
9. Stop the vacuum pump.
10. Connect the inlet hose for the portable filter to the
valve that is installed in the hole for the drain plug.
11. Disconnect the vacuum pump from the hydraulic
reservoir air breather hose. Remove the filler cap.
12. Install the outlet hose for the portable filter in the hy-
draulic reservoir filler neck.
13. Open the valve that is installed in the hole for the
drain plug.
14. Move the switch for the portable filter to the ON po-
sition. Start and run the engine at 1500 rpm (r/min).
15. Run the portable filter for 10 minutes.
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20. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
16. Continue to run the portable filter. Increase the en-
gine speed to full throttle. Heat the oil to operating
temperature by doing the following steps:
(A) Hold the blade control lever in the TILT position
for five seconds.
(B) Return the blade control lever in the NEUTRAL
position for five seconds.
(C) Repeat steps A and B until the oil in the hydraulic
system is at operating temperature.
17. Continue to run the engine at full throttle. Continue
to run the portable filter.
18. Operate each hydraulic circuit to completely extend
and retract the cylinders. Continue to operate each
hydraulic circuit two times, one after the other for 45
minutes.
19. Decrease the engine speed to low idle.
20. Continue to run the portable filter for 10 minutes.
21. Stop the portable filter
22. Stop the engine.
23. Remove the hose from the hydraulic reservoir.
24. Close the valve that is installed in the hole for the
drain plug.
25. Disconnect the inlet hose for the portable filter from
the valve. Remove the outlet hose from the reservoir
filter neck and replace filler cap.
26. Connect a vacuum pump to the breather hose of the
hydraulic reservoir.
27. Start the vacuum pump.
28. Remove the valve from the hole for the drain plug.
29. Install the drain plug.
30. Stop the vacuum pump. Disconnect the vacuum
pump from the opening in the reservoir and install
the breather.
31. Remove the hydraulic and hydrostatic filter elements
from the machine.
32. Install new hydraulic and hydrostatic filter elements
on the machine.
33. Start the engine. Check for oil leakage around the
new hydraulic and hydrostatic filters.
34. Stop the engine.
35. Check the oil level in the hydraulic reservoir. Add oil
as required.
NOTE: THE FOLLOWING PROCEDURES ARE FOR
FLUSHING WATER FROM THE HYDRAULIC SYSTEM
36. Start and run the engine at 1500 rpm (r/min).
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21. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
37. Completely retract the cylinders of all attachments on
the machine. Angle the blade to the right, the right
cylinder will be fully retracted and the left will be fully
extended. Stop the engine.
WARNING
If retracting the cylinder rods causes the attachment
to be raised, block the attachment in place before pro-
ceeding to the next step.
39-4
38. Move each control lever in both directions to release
pressure in the hydraulic circuits.
39. Loosen and remove the filler cap from the reservoir.
40. Drain the hydraulic oil from the reservoir.
(A) The reservoir holds approximately 75.5 l (20 US
gal) of hydraulic oil.
(B) Have available acceptable equipment to drain the
hydraulic oil.
(C) Remove the drain plug from the bottom of the
reservoir.
41. Remove the hydraulic and hydrostatic filter elements
from the machine.
42. Install new hydraulic and hydrostatic filter elements
on the machine.
43. Install the drain plug in the bottom of the reservoir.
44. Fill the hydraulic reservoir with lubricant, refer to Ca-
pacities for proper quantities and type.
45. Disconnect the line from the OPEN end and
CLOSED end of each cylinder.
46. Be sure all control levers are in the NEUTRAL posi-
tion.
47. Start and run the engine at low idle.
IMPORTANT: Check the oil level in the hydraulic reservoir
frequently while doing step 48. Have another person hold
a container under the hydraulic lines while you do step 48.
48. Slowly move each control lever in both directions un-
til oil begins to flow from the open line. Hold the con-
trol lever in place until clean oil flows from the open
line.
49. Stop the engine.
50. Connect the system line to the CLOSED end of each
cylinder.
51. Connect a suitable drain line to the OPEN end of
each cylinder and place the other end in an accept-
able container for contaminated oil.
52. Start the engine and run the engine at low idle.
53. Slowly and completely extend all cylinders. As the
piston rod comes in/out of the cylinder, oil will be
pushed out of the OPEN end of the cylinders.
IMPORTANT: Any attachment or part of an attachment
that is raised must be supported with acceptable
equipment to prevent the attachment from falling.
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22. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
54. Support any attachments that will be in the RAISED
position.
55. Stop the engine.
56. Disconnect the drain lines and connect the system
lines to the cylinders.
57. Check the oil level in the hydraulic reservoir. Add oil
as required.
58. Install the filler cap on the reservoir.
59. Remove the hydraulic and hydrostatic filter elements
from the machine.
60. Install new hydraulic and hydrostatic filter elements
on the machine.
61. Start and run the engine at 1500 rpm (r/min), oper-
ate each hydraulic circuit to completely extend and
retract the cylinders.
62. Stop the engine and check for leaks. Check the oil
level in the hydraulic reservoir. Add oil as required.
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23. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
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24. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Relief valve - Pressure setting
1. Remove the cover from the main relief valve and
loosen the lock nut on the adjusting screw.
2. Turn the adjusting screw into the main relief valve to
increase the pressure or out of the main relief valve
to decrease the pressure.
3. Refer to Relief valve - Pressure test (A.10.A) and
check the pressure setting. Adjust the main relief
valve again as necessary.
4. When the pressure setting is correct, prevent the ad-
justing screw from turning while the lock nut is tight-
ened. Install the cover on the main relief valve.
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25. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Relief valve - Disassemble
Prior operation:
Stack valve Inlet section - Disassemble (A.10.A)
1. Fasten the main relief valve in a vise with soft jaws.
Remove the cap.
RCPH09CWL193AAD 1
2. Hold the adjusting screw in position while you loosen
the lock nut.
RCPH09CWL192AAD 2
3. Remove the adjusting screw. Make sure that you
count the number of turns required to remove the
adjusting screw so that you can install the adjusting
screw correctly during Assembly.
RCPH09CWL191AAD 3
4. Remove the spring.
RCPH09CWL444AAD 4
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26. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
5. Remove the plunger.
RCPH09CWL190AAD 5
6. Remove the body from the housing.
7. Remove the spring.
RCPH09CWL189AAD 6
8. Replace the O-ring and the backup ring in the hous-
ing.
RCPH09CWL188AAD 7
9. Tap the main relief valve lightly against a solid sur-
face so that the poppet can be removed from the
housing.
RCPH09CWL187AAD 8
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27. DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
10. Replace the O-ring on the body.
RCPH09CWL117AAD 9
11. Replace the O-ring on the adjusting screw.
RCPH09CWL116AAD 10
12. Replace the O-ring and the backup ring on the pop-
pet.
RCPH09CWL083AAD 11
Next operation:
Relief valve - Visual inspection (A.10.A)
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