Position Control Linkage - Kubota M5640SU Workshop Manual

M5640SU, M5640DT-SU, WSM

[3] POSITION CONTROL LINKAGE

Adjusting Uppermost Position
1. Attach the weight (1) of 490 N (50 kgf, 110 lbf) to the end of
lower link (2).
2. Set the position control lever (3) to the lowest position.
3. Start the engine, and set the engine speed at the 1000 min
(rpm).
4. Set the position control lever (3) to the uppermost position.
5. Shorten the feedback rod by turning the turnbuckle (4) until the
relief valve begins to be operated.
6. From the relief valve operating position, turn the turnbuckle 1.5
turn to lengthen the feedback rod (4), then tighten the lock nut.
7. Move the position control lever down then all the way up and
check the relief valve does not operates. Stop the engine and
check that the lift arm has 5.0 to 20 mm (0.20 to 0.78 in.) play
upward on its edge.
8. If the specified play is not obtained, repeat from 4 again.
Position control
Factory spec.
feedback rod "A"
(1) Weight
(2) Lower Link
(3) Position Control Lever
8-S8
HYDRAULIC SYSTEM
Approx.
140 mm
5.51 in.
(4) Turnbuckle
(5) Lift Arm
9Y1210365HYS0005US0
KiSC issued 07, 2009 A
-1