PIN-LOWER-YM 3930939 - Caterpillar

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Install spring (30) and retainer (28) on retainer (31) .
Compress spring (30). Install detent balls (29) in position. Release the spring compression.
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Install seal (26) and seal (27) on housing (22) .
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Install retainer (25), housing (22), cover (24), and bolts (23) .
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Install the following components on plug (15) : O-ring seal (19), spring ( 21) and valve (20). Install plug (15) in the bulldozer lift control valve. Tighten the plug to a torque of 300 40 N m (220 30 lb ft).
Install the following components on plug (14) : O-ring seal (16), seal (18), seal (17) and the backup rings. Install plug (14). Tighten the plug to a torque of 145 15 N m (105 10 lb ft).
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Install detent (12), the bolt, and seal (13). Tighten bolt (13) to a torque of 20 3 N m (15 2 lb ft).
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Install retainer (8) and spring (11). Compress spring (11). Install retainer (9) .
Install valve spool (10) in the bulldozer lift control valve.
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Install seal (6) and seal (7) in housing (5) .
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Install housing (5), plate (3), and bolts (4). Tighten bolts (4) to a torque of 20 3 N m (15 2 lb ft).
Install O-rings (2) on bulldozer lift control valve (1) .
Check the force that is required for a shift of the control valve. Move the valve spool by 10 0.5 mm (0.39 0.02 inch). The correct force for movement of the valve spool is 155 25 N (35 6 lb). The valve spool must return to HOLD when the control is released. When the valve spool is moved into the detent, the correct force for movement of the valve spool is 440 140 N (100 32 lb).Reference: Refer to Systems Operation, "Bulldozer Lift Control Valve" in the Service Manual for your machine.End By: Install the bulldozer lift control valve in the control valve stack. Refer to Disassembly and Assembly, "Hydraulic Control Valve - Install" in this module.