Caterpillar Cat 426F2 Backhoe Loader (Prefix DJ4) Service Repair Manual (DJ400001 and up).pdf

Service Repair Manual
Models
426F2 Backhoe Loader

Shutdown SIS
Previous Screen
Product: BACKHOE LOADER
Model: 426 F2 BACKHOE LOADER DJ4
Configuration: 426F2 Backhoe Loader Side Shift DJ400001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
426F2 Back Hoe Loader Power Train System
Media Number -M0079727-01 Publication Date -01/06/2015 Date Updated -14/08/2017
i06943334
Axle Housing (Differential and Bevel Gear) (Front) - Assemble
SMCS - 3256-016-FR; 3258-016-FR; 3260-016-FR
S/N - DJ41-UP
S/N - EJ41-UP
Assembly Procedure
Table 1
Required Tools
Tool Qty Part Number Part Description Illustration (Substep) Location
A 1 235-2797 Spanner Wrench As Illustration 17 (1)
C 1 235-2784 Adjuster Tool Gp Illustration 11 (2)
E 1 1P-0520 Driver Gp Illustration 1 (2,4)
F 1 235-2789 Pinion Setting Tool Illustration 2 (1) and 6 (4)
G 2 235-2795 Disc Illustration 3 (1) and 5 (5)
H 1 235-2796 Shaft Illustration 3 (2) and 5 (4)
J 1 6V-2012 Depth micrometer Illustration 3 (5) and 5 (1)
K - - Loctite 638 Illustration 14 (2)
L 1 8T-5096 Tool Gp Illustration 18 (1)
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the
components, if necessary.
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https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...

Illustration 1 g06177534
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Tighten nut (4) until there is no end play.
Measure the depth from Tooling (H) to the bottom of the hole in Tooling (F). Record the
measurement as Measurement (X).
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Measurement (V) is stamped on the head of the pinion shaft. Measurement (S) is the thickness of the
shim that is used between the pinion shaft and the bearing cone. Use the following formula to
calculate Measurement (S) : X mm - V mm = S mm. Choose the shim with the thickness of
Measurement (S).
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Install shim (1) with the chamfer against the gear.
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Install lip seal (1) to a depth of 13.50 ± 14.00 mm (0.531 ± 0.551 inch) from the surface of
differential housing.
Note: Check the o-ring seal for wear or for damage. If necessary, replace the O-ring seal.
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Use Tooling (C) with a dial type torque wrench to set the rolling torque. Tighten the nut to achieve a
rolling torque of 1.74 to 2.58 N.m (15.4 to 22.83 lb in). After installation of the nut, use a suitable
hammer and a suitable punch to stake the nut.
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Slightly tighten bolts (2). Do not tighten bolts (2) at this time.
Oscillate the pinion shaft and use Tooling (A) to advance spanner nuts (2) until there is slight
backlash and no end play on the bearings.
Note: Use the following two Steps to set the proper bearing preload.
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Use a dial type torque wrench and measure the total rotating torque. Use the following formula to
calculate the total rotating torque (TRT): P equals the rotating torque that was measured in
Illustration 11. TRT = P + 0.53 N·m (5 lb in) to P + 0.80 N·m (7 lb in)
If the total rotating torque (TRT) is less than the specified amount, tighten the spanner nuts. If the
total rotating torque (TRT) is greater than the specified amount, loosen the spanner nuts. Always be
sure to maintain a slight backlash.
Measure the backlash between the pinion and the bevel gear. The proper backlash setting is between
0.180 mm (0.0071 inch) and 0.320 mm (0.0126 inch).
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426F2 Backhoe Loader Side Shift DJ400001-UP (MACHINE) POWERED BY C4....
2019/12/31

If the backlash is not within the specification, retract one spanner nut and advance the opposite
spanner nut equally. This procedure will maintain the bearing preload. If the backlash is less than the
specified amount, move the bevel gear in Direction (A). If the backlash is greater than the specified
amount, move the bevel gear in Direction (B).
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End By:
a. Install the Axle housing (Differential and Bevel Gear) (Front).
Copyright 1993 - 2019 Caterpillar Inc.
All Rights Reserved.
Private Network For SIS Licensees.
Tue Dec 31 23:34:00 UTC+0800 2019
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Shutdown SIS
Previous Screen
i06973718
Drive and Steering Axle (Front) - Install
SMCS - 3020-012-FR
Installation Procedure
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End By:
a. Install the wheel and tire assemblies.
b. Install the bucket.
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Shutdown SIS
Previous Screen
i06952423
Solenoid Valve (Transmission) - Remove and Install
SMCS - 5479-010-T3
Removal Procedure
Start By:
a. Release the system pressure.
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, "Dealer Service Tool
Catalog" for tools and supplies suitable to collect and contain fluids on
Cat®
products.
Dispose of all fluids according to local regulations and mandates.
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Caterpillar Cat 426F2 Backhoe Loader (Prefix DJ4) Service Repair Manual (DJ400001 and up).pdf

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Caterpillar Cat 426F2 Backhoe Loader (Prefix DJ4) Service Repair Manual (DJ400001 and up).pdf