7-S8
L3130 · L3430 · L3830 · L4630 · L5030, WSM
STEERING
(2) Disassembling and Assembling
• The hydraulic pump is precision machined and assembled : if disassemble once, it may be unable to
maintain its original performance. Therefore, when the hydraulic pump fails, replacement should be
carried out with the hydraulic pump assembled except when emergency repair is unavoidable.
• When repair is required, follow the disassembly and servicing procedures shown below with utmost care.
• Be sure to test the hydraulic pump with a flowmeter before disassembling.
• After reassembly, be sure to perform break-in operation and ensure that there is nothing abnormal with
the hydraulic pump.
(A) Removing Hydraulic Pump Assembly
Bonnet and Side Skirt RH
1. Open the bonnet (1).
2. Remove the side skirt RH (2).
W1014408
Regulator Valve (Manual and Glide Shift Transmission Models)
1. Disconnect the power steering delivery pipe (4) and return hose
(3).
2. Disconnect the GST/PTO delivery pipe (5) and regulator delivery
pipe (1).
3. Remove the regulator valve (2).
(When reassembling)
• Apply grease to the O-ring and take care not to damage it.
• Install the copper washer firmly.
W1014496
(1) Bonnet (2) Side Skirt RH
Tightening torque
Power steering delivery
pipe joint bolt
49.0 to 68.6 N·m
5.0 to 7.0 kgf·m
36.2 to 50.6 ft-lbs
GST/PTO delivery pipe
joint bolt
34.3 to 39.2 N·m
3.5 to 4.0 kgf·m
25.3 to 28.9 ft-lbs
Regulator delivery pipe
joint bolt
39.2 to 49.0 N·m
4.0 to 5.0 kgf·m
28.9 to 36.2 ft-lbs
Regulator valve mounting
screw
17.7 to 20.6 N·m
1.8 to 2.1 kgf·m
13.0 to 15.2 ft-lbs
(1) Regulator Delivery Pipe
(2) Regulator Valve
(3) Return Hose
(4) Power Steering Delivery Pipe
(5) GST/PTO Delivery Pipe
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