854G Wheel Tractor and 992G Wheel Loader Power Train Transmission Hydraulic Control Valve - Install Caterpillar


Transmission Hydraulic Control Valve - Install
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1.1. Installation Procedure

Installation Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-7405     Eyebolt     1    

  1. Thoroughly clean the mating surfaces of the transmission hydraulic control valve and the transmission.



    Illustration 1g00999492

  1. Attach a hoist and suitable lifting chain to Tool (A), as shown.

  1. Carefully lower control valve (7) into the transmission. The weight of the control valve is 52 kg (115 lb).

  1. Move control valve (7) to the left in order to gain enough clearance for installation of transmission control connector (10) to the transmission case.



    Illustration 2g00372782

  1. Install the washers and four bolts (13) that secure control valve (7) to the transmission. Tighten bolts (13) evenly to a torque of 48 ± 4 N·m (36 ± 3 lb ft).



    Illustration 3g00372777

  1. Install retainer (12) and a new gasket. Attach retainer (12) to the transmission case with two bolts (11) .

  1. Install nut (9) on transmission control connector (10). The torque for nut (9) is 9 ± 1 N·m (80 ± 9 lb in).



    Illustration 4g00372773

  1. Connect transmission control harness (8) .



    Illustration 5g00372772



    Illustration 6g00372752

  1. Lubricate the O-ring seals of sleeves (6) .

  1. Connect sleeves (6) to control valve (7) by sliding the sleeves forward in the valve body.



    Illustration 7g00372694

  1. Install bolt (5) and retainer (5) in order to secure sleeves (6) to control valve (7). The torque for bolt (5) is 25 ± 6 N·m (19 ± 4 lb ft).



    Illustration 8g00372655

  1. Install cover assembly (4) and a new gasket.

  1. Install cover assembly (4), bolts (3) and four bolts (2). Tighten bolts (3) and (2) to a torque of 48 ± 7 N·m (35 ± 5 lb ft).
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End By:

  1. Fill the transmission to the correct level. Refer to Operation and Maintenance ManualSEBU7009, "Transmission Oil - Change".
  2. Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".

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