Caterpillar Cat 420E BACKHOE LOADER (Prefix PHC) Service Repair Manual Instant Download.pdf

Service Repair Manual
Model
420E BACKHOE LOADER

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Product: BACKHOE LOADER
Model: 420E BACKHOE LOADER PHC
Configuration: 420E Backhoe Loader Parallel Lift PHC00001-UP (MACHINE) POWERED BY C4.4 Engine
Disassembly and Assembly
416E, 420E and 430E Backhoe Loaders Power Train
Media Number -KENR7651-05 Publication Date -01/05/2014 Date Updated -20/05/2014
i02490836
Axle Housing, Axle Shaft, and Wheel Flange - Remove
SMCS - 3259-011; 3260-011; 4057-011; 4234-011
S/N - PHC1-UP
Removal Procedure
Start By:
a. Remove the axle from the machine. Refer to Disassembly and Assembly, "Axle - Remove".
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 Dealer Service
Tool Catalog" for tools and supplies suitable to collect and contain
fluids on Caterpillar products.
Dispose of all fluids according to local regulations and mandates.
1. Drain the oil from the axle. Refer to Operation and Maintenance Manual, "Axle Oil (Rear) -
Change".
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420E Backhoe Loader Parallel Lift PHC00001-UP (MACHINE) POWERED BY C4.4...
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Illustration 1 g01073276
Note: Put location marks on the axle housing, brake cylinder assemblies, and the center housing for
assembly purposes.
2. Position suitable blocks under the axle in order to support the sections during removal. Attach a
suitable lifting device onto the axle housing. The weight of the axle housing is approximately 147 kg
(325 lb). Remove bolts (1).
3. Remove axle housing (2) from brake cylinder assembly (3).
4. Repeat Steps 2 through 3 for the other side.
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i03042741
Axle Housing, Axle Shaft, and Wheel Flange - Disassemble
SMCS - 3260-015; 4057-015; 4234-015
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 230-7923 Spanner Wrench 1
B 1P-1861 Retaining Ring Pliers 1
Start By:
a. Remove the axle housing, the axle shaft, and the wheel flange from the axle. Refer to
Disassembly and Assembly, "Axle Housing, Axle Shaft, and Wheel Flange - Remove".
b. Remove the final drive planetary from the axle. Refer to Disassembly and Assembly, "Final
Drive Planetary - Remove".
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1. Remove axle shaft (1). Remove sleeve (3). Use Tooling (B) in order to remove retaining
ring (2) from sleeve (3).
2. Remove axle shaft (4).
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3. Remove bolts (7) and discard bolts (7). Remove locking plate (6). Use Tooling (A) in order
to remove spanner nut (5).
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4. Remove ring gear (8).
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5. Remove retaining ring (9) and ring gear hub (10) from ring gear (8).
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6. Remove wheel flange (11).
Note: Bearing cone (12) will fall out of wheel flange (11) when wheel flange (11) is
removed.
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7. Remove seal (16) from wheel flange (11). Use a suitable hammer and a punch in order to
remove bearing cups (13) and (15). Remove O-ring seal (14).
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8. Remove spacer (17) and bearing cone (18).
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9. If necessary, remove seal (19) and bushing (20).
Sat Sep 21 11:53:03 UTC+0800 2019
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i02813529
Axle Housing, Axle Shaft, and Wheel Flange - Disassemble
SMCS - 3260-015; 4057-015; 4234-015
S/N - PHC1-UP
Table 1
Required Tools
B 1P-1861 Retaining Ring Pliers 1
Start By:
a. Remove the axle housing, the axle shaft, and the wheel flange from the axle. Refer to
Disassembly and Assembly, "Axle Housing, Axle Shaft, and Wheel Flange - Remove".
b. Remove the final drive planetary from the axle. Refer to Disassembly and Assembly, "Final
Drive Planetary - Remove".
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1. Remove axle shaft (1).
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2. Remove bolts (4) and remove locking plate (3). Use Tooling (A) in order to remove spanner
nut (2).
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3. Remove ring gear (5).
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4. Remove retaining ring (6) and ring gear hub (7) from ring gear (5).
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5. Remove wheel flange (8).
Note: Bearing cone (9) will fall out of wheel flange (8) when wheel flange (8) is removed.
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6. Remove seal (13) from wheel flange (8). Use a suitable hammer and a punch in order to
remove bearing cups (10) and (12). Remove O-ring seal (11).
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7. Remove spacer (14) and bearing cone (15).
8. Remove axle shaft (16). Remove sleeve (18). Use Tooling (B) to remove retaining ring (17)
from sleeve (18).
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9. If necessary, remove seal (19) and bushing (20).
Sat Sep 21 11:53:51 UTC+0800 2019
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i03741800
Axle Housing (Service Brakes, Differential and Bevel Gear) -
Disassemble
SMCS - 3256-015; 3258-015; 3260-015; 4251-015
Table 1
Required Tools
B 1P-2321 Combination Puller 1
C 235-2784 Adjusting Tool Gp 1
D 8H-0663 Bearing Puller Gp 1
Start By:
A. Remove the axle housing. Refer to Disassembly and Assembly, "Axle Housing, Axle Shaft,
and Wheel Flange - Remove".
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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
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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.
1. Remove plates (1) , brake discs (2) , and brake hub (4) from the axle housing. Remove
dowels (3) .
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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.
2. Remove bolts (8) . Remove the bolts and springs (9) as an assembly. Use a suitable pry bar
and remove brake piston (7) from brake cylinder assembly (5) . Remove O-ring seals (6)
from brake piston (7) . Repeat this step for the opposite side.
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3. Remove bolts (10) from brake cylinder assembly (5) .
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Note: Before you remove brake cylinder assembly (5) , make location marks for installation
purposes.
4. Remove brake cylinder assembly (5) .
5. Repeat Step 3 and Step 4 for the opposite side.
6. Remove the differential and bevel gear assembly (11) from the bevel gear side of the center
housing.
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Caterpillar Cat 420E BACKHOE LOADER (Prefix PHC) Service Repair Manual Instant Download.pdf

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Caterpillar Cat 420E BACKHOE LOADER (Prefix PHC) Service Repair Manual Instant Download.pdf