0437850 JOHNSON BEARING, Wrist pin

Table 1
Required Tools
Tool Part Number Part Description Qty
A(1) 9U-7489 Lift Stand 2
447-0910 Electric Hydraulic Pump (115 V) 1
447-0911 Electric Hydraulic Pump (230 V) 1
A1 OR
504-9830 Lift Gp (50/60 Hz)(2) 2
504-9831 Lift Gp (50/60 Hz)(3) 2
B 154-6185 Forcing Bolt 4
C 189-0408 Shackle As 1
D 493-1502 Film Gp 1
E FT-3334 Cage As 1
(1) Use Tooling (A) or (A1) based on requirements.
(2) Operating Voltage (380V - 500V)
(3) Operating Voltage (180V - 300V)Start By:
Install suitable cribbing around the front and rear tires.
Install the truck body retaining cable.
Remove the air cleaner cover.
Remove the radiator module.
Remove the main drive shaft.
Remove the pump drive shaft.Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses, and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
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, PERJ1017, "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.
Turn the battery disconnect switch into the OFF position.
Drain the engine oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Engine Oil and Filter - Change".
Drain the hydraulic oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic Tank Oil - Change".
Drain the torque converter and drain the transmission oil. Refer to Operation and Maintenance Manual, "Torque Converter and Transmission Oil - Change"
Purge the air pressure from the air tank. Refer to Operation and Maintenance Manual, "Air Tank Moisture and Sediment - Drain".
Illustration 1 g01562016
For Tooling (A)
Position Tooling (A) under the front frame support. Use Tooling (A) to lift the front frame support. The front frame support should be lifted to 30 cm (12 inch). This process will help remove pressure from the tube assembly which is located above the engine.
Illustration 2 g06384714
Typical example
For Tooling (A1)
Position Tooling (A1) under the front frame support. Use Tooling (A1) to lift the front frame support. The front frame support should be lifted to 30 cm (12 inch). This process will help remove pressure from the tube assembly which is located above the engine. Refer to Tool Operating Manual, NEHS1334, "Lift Stands (150 Ton)" for more information on Tooling (A1).
Illustration 3 g01565760
Attach a suitable lifting device to tube assembly (1).
Remove bolts (2).
Illustration 4 g01565802
Remove bolts (3) and install Tooling (B). Repeat this step for the opposite side.
Tighten Tooling (B) to remove shim pack (4) (not shown). Repeat this step for the opposite side.
Remove tube assembly (1). The weight of tube assembly (1) is approximately 177 kg (390 lb).
Illustration 5 g01567353
Front of engine
Disconnect harness assembly (5).