Caterpillar Cat 252B SKID STEER LOADER (Prefix SCP) Service Repair Manual (SCP00001-04599)

Service Repair Manual

Models

252B Skid Steer Loader

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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Shutdown SIS Previous Screen 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.

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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 Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

Illustration 2

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g01000849

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) .

Illustration 3

g01000859

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) .

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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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.

Fri Nov 15 00:25:26 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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Shutdown SIS Previous Screen 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

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 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.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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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.

Illustration 1

g01000873

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) .

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:26:22 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

1/2

Shutdown SIS Previous Screen 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

i01999086

Housing (Front) - Install SMCS - 1151-012

Installation Procedure NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

1. Clean all mating surfaces thoroughly.

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

Illustration 1

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g01000873

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".

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:27:18 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

1/2

Shutdown SIS Previous Screen 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

i02001086

Crankcase Breather - Remove and Install SMCS - 1317-010

Removal Procedure NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Illustration 1

g01035452

1. Loosen clamp (3) and disconnect hose (4). Remove bolts (1). Remove crankcase breather (2) .

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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Installation Procedure NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Illustration 2

g01035452

1. Position crankcase breather (2) and install bolts (1). Connect hose (4) and tighten clamp (3) .

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:28:13 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

1/3

Shutdown SIS Previous Screen 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

i02003323

Valve Mechanism Cover - Remove and Install SMCS - 1107-010

Removal Procedure 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.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

Illustration 1

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g01036032

1. Loosen clamp (4). Remove bolts (2). Remove the tube and hose (3), and remove gasket (1) .

Illustration 2

g01036036

2. Remove bolts (7). Remove valve mechanism cover (6) and gasket (5) .

Installation Procedure NOTICE Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

Illustration 3

3/3

g01036036

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).

Illustration 4

g01036032

2. Install gasket (1) and position the tube and hose (3). Install bolts (2) and tighten clamp (4) .

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:29:09 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

1/2

Shutdown SIS Previous Screen 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

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 Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.

Illustration 1

g01035049

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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) .

Illustration 2

g01035051

5. Remove pushrods (5) .

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:30:05 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis... 2019/11/15

236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

1/2

Shutdown SIS Previous Screen 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

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".

Illustration 1

g01035060

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236B 246B 252B 262B SKID STEER LOADER SCP00001-04599 (MACHINE) PO...

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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.

Copyright 1993 - 2019 Caterpillar Inc.

Fri Nov 15 00:31:01 UTC+0800 2019

All Rights Reserved.

Private Network For SIS Licensees.

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