the best service manual

1. Printed in U.S.A.
Copyright © 2014 CNH Industrial America LLC. All Rights Reserved.
Case is a registered trademark of CNH Industrial America LLC.
Racine Wisconsin 53404 U.S.A.
Part number 47797999
1st
edition English
October 2014
SERVICE MANUAL
CX36B
Tier 4B (final)
Compact Hydraulic Excavator
PIN NETN36001(PX17-40001) and above
MACHINE COMPLETION AND EQUIPMENT - 05
ENGINE - 10
HYDRAULIC SYSTEMS - 35
[35.000] Hydraulic systems - 35.1
[35.300] Reservoir, cooler, and filters - 35.2
[35.304] Combination pump units - 35.3
[35.352] Hydraulic swing system - 35.4
[35.353] Hydraulic travel system - 35.5
[35.357] Pilot system - 35.6

2. INTRODUCTION
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3. INTRODUCTION
Foreword - Important notice regarding equipment servicing
All repair and maintenance work listed in this manual must be carried out only by qualified dealership personnel,
strictly complying with the instructions given, and using, whenever possible, the special tools.
Anyone who performs repair and maintenance operations without complying with the procedures provided herein
shall be responsible for any subsequent damages.
The manufacturer and all the organizations of its distribution chain, including - without limitation - national, regional, or
local dealers, reject any responsibility for damages caused by parts and/or components not approved by the manu-
facturer, including those used for the servicing or repair of the product manufactured or marketed by the manufacturer.
In any case, no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case
of damages caused by parts and/or components not approved by the manufacturer.
The manufacturer reserves the right to make improvements in design and changes in specifications at any time without
notice and without incurring any obligation to install them on units previously sold. Specifications, descriptions, and
illustrative material herein are as accurate as known at time of publication but are subject to change without notice.
In case of questions, refer to your CASE CONSTRUCTION Sales and Service Networks.
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4. INTRODUCTION
Safety rules
Personal safety
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all
safety messages that follow this symbol to avoid possible death or injury.
Throughout this manual you will find the signal words DANGER, WARNING, and CAUTION followed by special in-
structions. These precautions are intended for the personal safety of you and those working with you.
Read and understand all the safety messages in this manual before you operate or service the machine.
DANGER indicates a hazardous situation that, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
FAILURE TO FOLLOW DANGER, WARNING, AND CAUTION MESSAGES COULD RESULT
IN DEATH OR SERIOUS INJURY.
Machine safety
NOTICE: Notice indicates a situation that, if not avoided, could result in machine or property damage.
Throughout this manual you will find the signal word Notice followed by special instructions to prevent machine or
property damage. The word Notice is used to address practices not related to personal safety.
Information
NOTE: Note indicates additional information that clarifies steps, procedures, or other information in this manual.
Throughout this manual you will find the word Note followed by additional information about a step, procedure, or
other information in the manual. The word Note is not intended to address personal safety or property damage.
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5. INTRODUCTION
Safety rules - Ecology and the environment
CX36B
Soil, air, and water quality is important for all industries and life in general. When legislation does not yet rule the
treatment of some of the substances that advanced technology requires, sound judgment should govern the use and
disposal of products of a chemical and petrochemical nature.
NOTE: The following are recommendations that may be of assistance:
• Familiarize yourself with the relative legislation applicable to your country, and make sure that you understand this
legislation.
• Where no legislation exists, obtain information from suppliers of oils, filters, batteries, fuels, anti-freeze, cleaning
agents, etc., with regard to the effect of these substances on man and nature and how to safely store, use, and
dispose of these substances.
Helpful hints
• Avoid the use of cans or other inappropriate pressurized fuel delivery systems to fill tanks. Such delivery systems
may cause considerable spillage.
• In general, avoid skin contact with all fuels, oils, acids, solvents, etc. Most of these products contain substances
that may be harmful to your health.
• Modern oils contain additives. Do not burn contaminated fuels and or waste oils in ordinary heating systems.
• Avoid spillage when you drain fluids such as used engine coolant mixtures, engine oil, hydraulic fluid, brake fluid,
etc. Do not mix drained brake fluids or fuels with lubricants. Store all drained fluids safely until you can dispose of
the fluids in a proper way that complies with all local legislation and available resources.
• Do not allow coolant mixtures to get into the soil. Collect and dispose of coolant mixtures properly.
• The air-conditioning system contains gases that should not be released into the atmosphere. Consult an air-condi-
tioning specialist or use a special extractor to recharge the system properly.
• Repair any leaks or defects in the engine cooling system or hydraulic system immediately.
• Do not increase the pressure in a pressurized circuit as this may lead to a component failure.
• Protect hoses during welding. Penetrating weld splatter may burn a hole or weaken hoses, allowing the loss of oils,
coolant, etc.
Battery recycling
Batteries and electric accumulators contain several substances that can have a harmful effect on the environment
if the batteries are not properly recycled after use. CASE CONSTRUCTION strongly recommends that equipment
owners return all used batteries to a [Brand] dealer, who will dispose of the used batteries or recycle the used batteries
properly. In some countries, this is a legal requirement.
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6. INTRODUCTION
Safety rules Personal Safety
CX36B
Most accidents involving machine operation and maintenance can be avoided by following basic safety rules and
precautions. Read and understand all the safety messages in this manual and the safety signs on the machine before
you operate or service the machine. See your dealer if you have any questions.
READ THIS MANUAL COMPLETELY and make sure you understand the controls. All equipment has a limit. Make
sure you understand the speed, brakes, steering, stability, and load characteristics of the machine before you start to
operate this machine.
DO NOT remove this manual from the machine.
The safety information given in this manual does not replace safety codes, insurance needs, federal, state, or local
laws. Make sure that your machine has the correct equipment according to these rules or laws.
Additional safety messages are used in the text of the manual to show specific safety hazards.
NOTICE: The safety messages in this chapter point out conditions which can happen during the normal operation
and maintenance of your machine. These safety messages also give possible ways of dealing with these conditions.
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7. INTRODUCTION
Basic instructions - Shop and assembly
CX36B
Shimming
For each adjustment operation, select adjusting shims and measure the adjusting shims individually using a microm-
eter, then add up the recorded values. Do not rely on measuring the entire shimming set, which may be incorrect, or
the rated value shown on each shim.
Rotating shaft seals
For correct rotating shaft seal installation, proceed as follows:
1. Before assembly, allow the seal to soak in the oil it will be sealing for at least thirty minutes.
2. Thoroughly clean the shaft and check that the working surface on the shaft is not damaged.
3. Position the sealing lip facing the fluid.
NOTE: With hydrodynamic lips, take into consideration the shaft rotation direction and position the grooves so that
they will move the fluid towards the inner side of the seal.
4. Coat the sealing lip with a thin layer of lubricant (use oil rather than grease). Fill the gap between the sealing lip
and the dust lip on double lip seals with grease.
5. Insert the seal in its seat and press down using a flat punch or seal installation tool. Do not tap the seal with a
hammer or mallet.
6. While you insert the seal, check that the seal is perpendicular to the seat. When the seal settles, make sure that
the seal makes contact with the thrust element, if required.
7. To prevent damage to the seal lip on the shaft, position a protective guard during installation operations.
O-ring seals
Lubricate the O-ring seals before you insert them in the seats. This will prevent the O-ring seals from overturning and
twisting, which would jeopardize sealing efficiency.
Sealing compounds
Apply a sealing compound on the mating surfaces when specified by the procedure. Before you apply the sealing
compound, prepare the surfaces as directed by the product container.
Spare parts
Only use CNH Original Parts or CASE CONSTRUCTION Original Parts.
Only genuine spare parts guarantee the same quality, duration, and safety as original parts, as they are the same
parts that are assembled during standard production. Only CNH Original Parts or CASE CONSTRUCTION Original
Parts can offer this guarantee.
When ordering spare parts, always provide the following information:
• Machine model (commercial name) and Product Identification Number (PIN)
• Part number of the ordered part, which can be found in the parts catalog
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8. INTRODUCTION
Protecting the electronic and/or electrical systems during charging and welding
To avoid damage to the electronic and/or electrical systems, always observe the following practices:
1. Never make or break any of the charging circuit connections when the engine is running, including the battery
connections.
2. Never short any of the charging components to ground.
3. Always disconnect the ground cable from the battery before arc welding on the machine or on any machine
attachment.
• Position the welder ground clamp as close to the welding area as possible.
• If you weld in close proximity to a computer module, then you should remove the module from the machine.
• Never allow welding cables to lie on, near, or across any electrical wiring or electronic component while you
weld.
4. Always disconnect the negative cable from the battery when charging the battery in the machine with a battery
charger.
NOTICE: If you must weld on the unit, you must disconnect the battery ground cable from the machine battery.
The electronic monitoring system and charging system will be damaged if this is not done.
5. Remove the battery ground cable. Reconnect the cable when you complete welding.
WARNING
Battery acid causes burns. Batteries contain sulfuric acid.
Avoid contact with skin, eyes or clothing. Antidote (external): Flush with water. Antidote (eyes): flush
with water for 15 minutes and seek medical attention immediately. Antidote (internal): Drink large
quantities of water or milk. Do not induce vomiting. Seek medical attention immediately.
Failure to comply could result in death or serious injury.
W0111A
Special tools
The special tools that CASE CONSTRUCTION suggests and illustrate in this manual have been specifically re-
searched and designed for use with CASE CONSTRUCTION machines. The special tools are essential for reliable
repair operations. The special tools are accurately built and rigorously tested to offer efficient and long-lasting oper-
ation.
By using these tools, repair personnel will benefit from:
• Operating in optimal technical conditions
• Obtaining the best results
• Saving time and effort
• Working in safe conditions
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9. Machine completion and equipment - Machine completion
Machine completion - General specification
RAIL14CEX1325HA 1
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10. SERVICE MANUAL
Engine
CX36B Cab TIER 4B (FINAL)
CX36B Canopy TIER 4B (FINAL)
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11. Engine - Air cleaners and lines
Air cleaner - Remove
Tools required
Flat-head screwdriver Wrench: 13 mm
1. Loosen clips (7) and (5).
2. Remove air hoses (6) and (8).
3. Loosen two bolts (2) (M8 x 20) and remove air cleaner
(4) and bracket (3) assembly.
4. Loosen four bolts (1) (M8 x 16) and remove air cleaner
assembly (4).
RAIL14CEX1353GA 1
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12. Engine - Air cleaners and lines
Air cleaner - Install
Tools required
Flat-head screwdriver Wrench: 13 mm
1. Secure the air cleaner assembly (4) to the bracket
(3) using two bolts (2). Tighten the bolts to 23.5 N·m
(17.3 lb ft).
RAIL14CEX1353GA 1
2. Fasten the air cleaner assembly to the frame using four
bolts (1). Torque the bolts to 17.7 N·m (13.1 lb ft).
3. Install air hoses (6) and (8) using clips (7) and (5).
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13. Engine - Fuel tanks
Fuel tanks - Prepare
Tools required
Flat-head screwdriver
1. Remove the guard around the fuel tank. Refer to Cab
guard - Remove Guard (Cover) (90.150).
2. Remove the battery. Refer to Battery - Remove
(55.302).
3. Open the filler cap (1) and loosen the drain valve (8) to
drain the fuel. Tank capacity 75 L (20 US gal).
4. Remove rubber cover (2).
5. Remove the rubber cover for the battery.
6. Disconnect the fuel level sensor.
7. Loosen clip (4) and pull off hoses (5) and (3). Mark the
location of each hose to aid in the installation process.
Plug or cap all open ports.
8. Loosen clip (6). Pull off hose (7)
RAIL14CEX1354GA 1
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14. Engine - Fuel tanks
Fuel tanks - Remove
Prior operation:
Refer to Fuel tanks - Prepare (10.216)
Tools required
Wrench: 19 mm
1. Drain the fuel tank. Use a suitable device to contain the
fuel.
2. Remove bolts (1) and bolts (3).
3. Remove bracket (2) and bracket (4).
4. Use a suitable lifting device to remove the fuel tank (5)
from the machine.
RAIL14CEX0458BA 1
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15. Engine - Fuel tanks
Fuel tanks - Install
Tools required
Wrench: 19 mm
1. Place the fuel tank (5) back into the machine.
2. Secure the fuel tank in place with brackets (2) and (4)
and bolts (1) and (3). Torque the bolts to 80 N·m (59 lb
ft).
RAIL14CEX0458BA 1
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16. Engine - Intake and exhaust manifolds and muffler
Intake and exhaust manifolds and muffler - Remove
Prior operation:
Remove the guards which prevents you from accessing the muffler. Refer to Cab guard - Remove Guard (Cover)
(90.150).
Prior operation:
Remove the under cover. Cab and platform - Remove Under cover (90.150).
Prior operation:
Remove the counterweight. Refer to Cab - Remove Counterweight (90.150).
Tools required
Socket: 13 mm Wrench: 17 mm
RAIL14CEX1355GA 1
1. Loosen M8 nuts (4) and (8). Remove U bolt (10).
2. Loosen M10 nut (6). Remove exhaust tube (9).
3. Loosen M10 nut (6). Remove exhaust tube (13).
4. Loosen two M8 x 16 bolts (5). Remove cover (7).
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17. Engine - Intake and exhaust manifolds and muffler
5. Loosen one M8 x 16 bolt (2) and one M10 nut. Remove
exhaust tube (3).
6. Loosen two M8 x 16 bolts (12). Remove exhaust tube
(11).
7. Loosen four M8 nuts (1) and four M8 x 20 bolts (14).
Remove the muffler (15).
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18. Engine - Intake and exhaust manifolds and muffler
Intake and exhaust manifolds and muffler - Install
Tools required
Wrench: 13 mm Wrench: 17 mm
RAIL14CEX1355GA 1
1. Fit the muffler (15) into place.
2. Secure the muffler in place by using the four M8 nuts
(1) and four M8 x 20 bolts (14).
3. Fit the exhaust tube (11) in place. Fasten it in place
using the two bolts (12).
4. Fit exhaust tube (3) in place. Fasten it in place using
one M8 x 16 bolt (2) and one M10 nut.
5. Install cover (7) using the M8 x 16 two bolts (5) .
6. Install exhaust tube (13). Fasten it in place using the
M10 nut (6).
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19. Engine - Intake and exhaust manifolds and muffler
7. Install exhaust tube (9). Secure it in place using M10
nut (6).
8. Secure exhaust tube (9) in place using M8 nuts (4), M8
nuts (8) and U bolt (10).
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20. Engine - Intake and exhaust manifolds and muffler
RAIL14CEX1327HA 2
1 Secure the nut in place 70.0 mm (2.8 in) from
the bottom of the frame plate.
7 Clamp installation position
2 20.0 mm (0.8 in) or above 8 Allowance for inserting the tube.
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21. Engine - Intake and exhaust manifolds and muffler
3 Clamp installation position 9 Slits of tail pipe, avoid this range.
4 Clamp installation position 10 Slits of tail pipe, avoid this range.
5 Allowance for inserting the tube. 11 Slits of tail pipe, avoid this range.
6 Assemble so that the holes in (9) and (13)
are aligned.
A View I E Section CC
B View II F View III
C View IV G Section DD
D Section BB H Section EE
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23. Engine - Engine cooling system
Radiator - Remove
Prior operation:
Remove the guards which prevents you from accessing the radiator. Refer to Cab guard - Remove Guard (Cover)
(90.150).
Prior operation:
Remove the counterweight. Refer to Cab - Remove Counterweight (90.150).
Prior operation:
Remove the air conditioner condenser. Remove the receiver dryer. Secure the condenser and the dryer to the outside
of the machine.
Prior operation:
Remove the fan guard.
Tools required
Socket: 17 mm Pliers
Flat head screwdriver
1. Relieve the pressure in the cooling system.
2. Remove the radiator cap (1).
3. Loosen clip (2) and remove plug (3) to drain the cool-
ing system. Capacity is approximately 1.80 L (0.48 US
gal).
RAIL14CEX1384FA 1
4. Release the pressure in the hydraulic circuit.
5. Remove the oil cooler hoses (1), (2), and (3). Attach
plugs to the outlet and inlet of the oil cooler hoses.
RAIL14CEX1383FA 2
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24. Engine - Engine cooling system
6. Remove clip (1) from the connection hose (3) of the
reserve tank (4). Remove the hose (3).
7. Remove radiator hose (2) and (5) secured with clips
(4). Remove the hose.
RAIL14CEX1357GA 3
8. Loosen the three bolts (4). Remove the bracket assem-
bly (3).
9. Loosen two bolts (5) and one (2).
10. Use a suitable lifting device to remove the radiator
assembly from the machine. The radiator assembly
weighs approximately 23.0 kg (50.7 lb).
RAIL14CEX1356GA 4
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25. Engine - Engine cooling system
Radiator - Install
Tools required
Socket: 17 mm Pliers
Flat head screwdriver
1. Use a suitable lifting device to carefully place the radi-
ator back into the machine. The weight of the radiator
is approximately 23.0 kg (50.7 lb).
2. Secure the radiator to the frame using the two bolts
(5) and one bolt (2). Tighten the bolts to 120.0 N·m
(88.5 lb ft).
RAIL14CEX1356GA 1
3. Fit the bracket assembly to the radiator. Secure the
radiator to the bracket using the three bolts (4). Tighten
the bolts to 120.0 N·m (88.5 lb ft).
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26. Engine - Engine cooling system
4. Install radiator hose (2) and (5). Secure the hoses with
clamps (7) and (6).
5. Connect hose (3) to the reserve tank (4) with clip (1).
RAIL14CEX1357GA 2
6. Install the oil cooler hoses (1), (2) and (3). Secure the
hoses in place with the clips.
RAIL14CEX1383FA 3
7. Install plug (3) . Secure hose to the radiator with clip
(2).
8. Fill the cooling system.
RAIL14CEX1384FA 4
9. Verify the oil level.
10. Start and test the system for leaks.
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