Caterpillar cat 277 multi terrain loader (prefix cnc) service repair manual (cnc00001 and up)

Service Repair Manual
Models
277 MULTI TERRAIN LOADER

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Product: MULTI TERRAIN LOADER
Model: 277 MULTI TERRAIN LOADER CNC
Configuration: 267 277 Multi Terrain Loader CNC00001-UP (MACHINE) POWERED BY 3034 Engine
Disassembly and Assembly
267, 277 and 287 Multi Terrain Loaders Machine Systems
Media Number -RENR4816-03 Publication Date -01/10/2009 Date Updated -29/10/2009
i01989030
Quick Coupler - Remove and Install - Hydraulic
SMCS - 6129-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 140-7742 Sleeve 2
ZZ
6V-9507 Face Seal Plug 4
6V-9828 Cap As 4
Start By:
A. Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic
System Pressure - Release".
Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN
PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS
SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.
Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the
engine has been stopped. Serious injury can be caused if this pressure is
not released before any service is done on the hydraulic system.
1/7267 277 Multi Terrain Loader CNC00001-UP (MACHINE) POWERED BY 3034 Eng...
2019/11/8https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Make sure all of the work tools have been lowered to the ground, and
the oil is cool before removing any components or lines. Remove the oil
filler cap only when the engine is stopped, and the filler cap is cool
enough to touch with your bare hand.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop
Products Guide" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior
of the components should be thoroughly cleaned. This will help to prevent dirt from entering the
internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform
disassembly procedures on a clean work surface. Keep components covered and protected at all
times.
Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube
assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps
to prevent fluid loss, and this helps to keep contaminants from entering the system.
1. Remove the work tool. Refer to Operation and Maintenance Manual, "Work Tool Coupler
Operation".
Illustration 1 g01030155

2. Disconnect hose assemblies (1) .
3. Position the quick coupler on blocks, as shown. Remove bolts (2) and guard (3) .
4. Remove bolts (4) and bolt (5). Reposition the hose assemblies out of the way.

5. Attach Tooling (A) and a suitable lifting device to quick coupler (6). The weight of the
quick coupler is approximately 98 kg (215 lb).
6. Remove bolt (8) and pin assembly (7) .
7. Remove bolt (10) and pin assembly (9) .
8. Repeat Step 6 and Step 7 for the other side.
9. Use the suitable lifting device to remove quick coupler (6). The weight of quick coupler (6)
is approximately 98 kg (215 lb).
Installation Procedure
Table 2

Required Tools
A 140-7742 Sleeve 2
B 5P-0960 Molybdenum Grease 1
Note: The pins, the bores, and the bearings must be clean before assembling.
1. Apply Tooling (B) in order to lubricate the pins, the bores, and the bearings before
assembling.
2. Attach Tooling (A) and a suitable lifting device to quick coupler (6). The weight of quick
coupler (6) is approximately 98 kg (215 lb). Position quick coupler (6). Use blocks to
support the quick coupler.
3. Install pin assembly (9) and bolt (10) .
4. Install pin assembly (7) and bolt (8) .

5. Repeat Step 3 and Step 4 for the other side.
6. Remove the suitable lifting device and Tooling (A) .
7. Reposition the hose assemblies and install bolts (4) and bolts (5) .
8. Install guard (3) and bolts (2) .

9. Connect hose assemblies (1) .
10. Install the work tool. Refer to Operation and Maintenance Manual, "Work Tool Coupler
Operation".
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Nov 8 22:12:14 UTC+0800 2019

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i01991495
Solenoid Valve and Mounting (Coupler) - Remove and Install
- 267 and 277 Multi Terrain Loader
SMCS - 5479-010-MT; 5479-010
S/N - CMP1-UP
S/N - CNC1-UP
Removal Procedure
Table 1
Required Tools
ZZ
6V-9829 Cap As 3
6V-9830 Cap As 1
Start By:
B. Raise the cab. Refer to Disassembly and Assembly, "Cab - Tilt".

NOTICE
containing fluids.
times.

1. Disconnect harness assembly (1). Disconnect hose assemblies (2). Disconnect tube
assembly (3). Remove bolts (4). Remove coupler valve (5) .
1. Install coupler valve (5). Install bolts (4). Connect tube assembly (3). Connect hose
assemblies (2). Connect harness assembly (1) .
2. Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic Oil
Level - Check".

End By: Lower the cab. Refer to Disassembly and Assembly, "Cab - Tilt".
Fri Nov 8 22:13:13 UTC+0800 2019

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i01807309
Coupler Cylinder - Remove and Install
SMCS - 5133-010
Removal Procedure
Start By:
System Pressure Release".
NOTICE
containing fluids.

times.
1. Disconnect hose assemblies (1) .

2. Remove pin (2). Remove pin (3). Remove coupler cylinder and link assembly (4) .
3. Repeat Step 2 for the other side.

1. Install coupler cylinder and link assembly (4). Install pin (3). Install pin (2) .
2. Repeat Step 1 for the other side.

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3. Connect hose assemblies (1) .
Fri Nov 8 22:14:12 UTC+0800 2019

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i01934149
Tilt Cylinder - Remove and Install
SMCS - 5104-010
Removal Procedure
Table 1
REQUIRED TOOLS
A 180-3034 Repair Stand Set 2
B
4C-5655 Adapter 1
5F-7345 Threaded Rod (5/8 inch by 18 NF by 16 inch) 1
1P-0074 Slide Hammer Puller Gp 1
6B-6683 Nuts 2
ZZ
6v-9830 Cap As 4
Start By:
B. Remove the quick coupler. Refer to Disassembly and Assembly, "Quick Coupler - Remove
and Install".

Cylinders equipped with lock valves can remain pressurized for very
long periods of time, even with the hoses removed.
Failure to relieve pressure before removing a lock valve or
disassembling a cylinder can result in personal injury or death.
Ensure all pressure is relieved before removing a lock valve or
disassembling a cylinder.
NOTICE
containing fluids.

1. Use Tooling (A) to support the lift arms.
2. Disconnect hose assembly (1). Disconnect hose assembly (2) .

3. Remove bolt (3) .
4. Use a suitable lifting device to support tilt cylinder (5). Use Tooling (B) to remove pin (4).
Remove cylinder (5) .
5. Repeat Steps 2 through 4 for the other side.
Disassembly and Assembly Information
Table 2
Required Tools
C 127-4904 Repair Stand 1
D 195-4609 Seal Pick 1
F 5P-0960 Molybdenum Grease
Cylinders equipped with lock valves can remain pressurized for very
long periods of time, even with the hoses removed.
Failure to relieve pressure before removing a lock valve or
disassembling a cylinder can result in personal injury or death.
Ensure all pressure is relieved before removing a lock valve or
disassembling a cylinder.

Caterpillar cat 277 multi terrain loader (prefix cnc) service repair manual (cnc00001 and up)

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