wsm B2420 - Disassembling and Assembling; Hydraulic Pump for Power Steering

STEERING
B2420, WSM
7-S12
Power Steering Controller Assembly
1. Remove the parking brake lever rod (1).
2. Remove the power steering delivery pipe (4).
3. Disconnect the hose clamp and the return hose (3).
4. Remove the return pipe (2) with the return hose (3).
5. Disconnect the drag link (7) with a tie-rod end lifter from the
pitman arm.
6. Remove the power steering gear box assembly (5).
IMPORTANT
• Do not loosen the slotted nut (6) to align the hole.
• Install the cotter pin as shown in the figure.
NOTE
• For fastening hydraulic pipe nut, use two wrenches. Hold
the fitting with a wrench and turn the pipe nut with another
wrench to avoid damage at fitting installed part.
9Y1210436STS0011US0
[3] DISASSEMBLING AND ASSEMBLING
(1) Hydraulic Pump for Power Steering
Hydraulic Pump Cover, Side Plate and Gear
1. Secure the hydraulic pump with a vise, and remove the
hydraulic pump cover (3).
2. Remove the side plate (5).
3. Remove the drive gear (4) and driven gear (2) from the casing
(1).
(When reassembling)
• Take care not to damage the O-ring.
• Align the holes of the cover (3) and casing (1).
• Install the side plate (5), noting its location and direction.
• Install the gears (2), (3), noting its direction.
9Y1210436STS0012US0
Tightening torque
Power steering delivery
pipe nut
65 to 75 N·m
6.7 to 7.6 kgf·m
48 to 55 lbf·ft
Return pipe nut
34 to 39 N·m
3.5 to 3.9 kgf·m
25 to 28 lbf·ft
Slotted nut
18 to 35 N·m
1.9 to 3.5 kgf·m
14 to 25 lbf·ft
Power steering controller
assembly mounting screw
78 to 90 N·m
7.9 to 9.2 kgf·m
58 to 66 lbf·ft
(1) Parking Brake Rod
(2) Return Pipe
(3) Return Hose
(4) Power Steering Delivery Pipe
(5) Power Steering Gear Box Assembly
(6) Slotted Nut
(7) Drag Link
Tightening torque Cover mounting screw
35 to 39 N·m
3.5 to 4.0 kgf·m
26 to 29 lbf·ft
(1) Casing
(2) Driven Gear
(3) Hydraulic Pump Cover
(4) Drive Gear
(5) Side Plate
KiSC issued 06, 2012 A