Caterpillar cat 252 b skid steer loader (prefix scp) service repair manual (scp00001 04599)

Service Repair Manual
Models
252B Skid Steer Loader

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Product: SKID STEER LOADER
Model: 252B SKID STEER LOADER SCP
Configuration: 236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) POWERED BY 3044C Engine
Disassembly and Assembly
3044C Industrial Engine and Engines for Caterpillar Built Machines
Media Number -RENR7582-07 Publication Date -01/01/2010 Date Updated -26/02/2010
i01998999
Idler Gear - Remove and Install
SMCS - 1206
Removal Procedure
Start By:
A. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) -
Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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.
1/4236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...
2019/11/15https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

1. Ensure that the No. 1 cylinder is at the top center compression stroke. Refer to Testing and
Adjusting, "Finding Top Center Position for No. 1 Piston".
Illustration 1 g01000849
2. Remove bolt (5), washer (4), and retaining plate (3). Remove idler gear (2) from idler gear
hub (1) .
Installation Procedure
NOTICE

Note: The lubrication hole of idler gear hub (1) must be positioned at the top.
1. Install idler gear hub (1) in the cylinder block. Use a soft hammer to seat idler gear hub (1) .
Note: When you install idler gear (2), ensure that the marked teeth are facing toward the
front.
2. Align timing marks (6) on the teeth with the timing marks on the crankshaft gear, the fuel
injection pump gear, and the camshaft gear. Position idler gear (2) on idler gear hub (1) .

3. Install retaining plate (3), washer (4), and bolt (5) and tighten to a torque of 29 to 39 N·m
(21 to 29 lb ft).
4. Inspect the backlash and end play of the gear group. Refer to Testing and Adjusting, "Gear
Group - Inspect".
End By: Install the front housing. Refer to Disassembly and Assembly, "Housing (Front) -
Install".
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Fri Nov 15 00:25:26 UTC+0800 2019

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i01999078
Housing (Front) - Remove
SMCS - 1151-011
Removal Procedure
Start By:
A. Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove
and Install".
B. Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley -
Remove and Install".
C. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install".
NOTICE
NOTICE
containing fluids.

1. Remove bolts (1) from front housing (2) .
Note: Be careful not to damage the crankshaft front seal when you remove front housing (2)
from the cylinder block.
2. Remove front housing (2) and gasket (3). Discard gasket (3) .
Fri Nov 15 00:26:22 UTC+0800 2019

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i01999086
Housing (Front) - Install
SMCS - 1151-012
NOTICE
1. Clean all mating surfaces thoroughly.

2. Install a new gasket (3) on the front plate. Be sure that gasket (3) properly fits on the dowel
pins.
Note: Do not use sealant on the gasket.
3. Apply clean engine oil to the lip of the crankshaft front seal.
Note: If a new crankshaft front seal needs to be installed, refer to Disassembly and
Assembly, "Crankshaft Front Seal - Install".
4. Position front housing (2) on the front of the cylinder block.
5. Install bolts (1) and tighten to a torque of 10 to 13 N·m (7 to 10 lb ft).
End By:
a. Install the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove and
Install".
b. Install the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley -
Remove and Install".
c. Install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove
and Install".
Fri Nov 15 00:27:18 UTC+0800 2019

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i02001086
Crankcase Breather - Remove and Install
SMCS - 1317-010
Removal Procedure
NOTICE
1. Loosen clamp (3) and disconnect hose (4). Remove bolts (1). Remove crankcase breather
(2) .

NOTICE
1. Position crankcase breather (2) and install bolts (1). Connect hose (4) and tighten clamp
(3) .
Fri Nov 15 00:28:13 UTC+0800 2019

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i02003323
Valve Mechanism Cover - Remove and Install
SMCS - 1107-010
Removal Procedure
NOTICE
NOTICE
containing fluids.

1. Loosen clamp (4). Remove bolts (2). Remove the tube and hose (3), and remove gasket (1) .
2. Remove bolts (7). Remove valve mechanism cover (6) and gasket (5) .
NOTICE

1. Install gasket (5) and position valve mechanism cover (6). Install bolts (7) and tighten to a
torque of 10 to 13 N·m (90 to 115 lb in).
2. Install gasket (1) and position the tube and hose (3). Install bolts (2) and tighten clamp (4) .
Fri Nov 15 00:29:09 UTC+0800 2019

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i02000449
Rocker Shaft and Pushrod - Remove
SMCS - 1102-011; 1208-011
Removal Procedure
Start By:
A. Remove the valve mechanism cover. Refer to Disassembly and Assembly, "Valve
Mechanism Cover - Remove and Install".
NOTICE

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1. Loosen each nut and adjustment screw (1) by one rotation.
2. Remove bolts (4) .
3. Remove bolts (2) .
4. Remove rocker shaft assembly (3) .
5. Remove pushrods (5) .
Fri Nov 15 00:30:05 UTC+0800 2019

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i02000461
Rocker Shaft - Disassemble
SMCS - 1102-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1855 Retaining Ring Pliers 1
Start By:
A. Remove the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft
and Pushrod - Remove".

Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
1. Use Tooling (A) to remove retaining rings (5) .
2. Place an identification mark on each of the components for installation purposes.
3. Remove rocker arm assembly (4) .
4. Remove bracket (3) .
5. Remove rocker arm assembly (2) .
6. Remove spring (1) .
7. Repeat Steps 3 through 6 in order to completely disassemble the rocker shaft assembly.
Fri Nov 15 00:31:01 UTC+0800 2019

Caterpillar cat 252 b skid steer loader (prefix scp) service repair manual (scp00001 04599)

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Caterpillar cat 252 b skid steer loader (prefix scp) service repair manual (scp00001 04599)