Checking And Adjusting - wsm L503 Workshop Manual

L3130 · L3430 · L3830 · L4630 · L5030, WSM
[3] REAR HYDRAULIC BLOCK AND VALVES

(1) Checking and Adjusting

Position Control Feedback Rod Adjustment
1. Set the position control lever (1) to the lowest position.
2. Start the engine, and after warming-up, set the engine speed at
the idling.
3. Move the position control lever (1) to the uppermost position.
[The lever is raised until spring finishes shrinking, and the lever
positon is put into the state to release.]
4. While pulling the feedback rod to the rear, turn the adjusting nut
(4) clockwise until the relief valve begins to be operated.
5. From the relief valve operating position, turn back the adjusting
nut (4) counterclockwise by 2 turns.
6. Tighten the lock nut (5).
7. Set the engine speed at the maximum.
8. Move the position control lever (1) to the lowest position and
uppermost position to check the relief valve does not operate.
9. Set the position control lever (1) to the uppermost position, then
move the lift arm to the upper end by hand and measure the free
play.
10.If the measurement is not within the factory specifications, adjust
the position control feedback rod setting length.
- To reduce lift arm free play → Shorten the position control
- To increase lift arm free play → Lengthen the position control
Lift arm free play at
maximum raising Factory spec.
position
(1) Position Control Lever
(2) Stopper
(3) Position Control Feedback Rod
8-S12
HYDRAULIC SYSTEM
feedback rod setting length.
feedback rod setting length.
10 to 15 mm
0.39 to 0.59 in.
(4) Adjusting Nut
(5) Lock Nut
W1015610
KiSC issued 02, 2007 A