Cylinder Safety Valve - wsm Kubota L4100 Workshop Manual

L4100, WSM

(3) Cylinder Safety Valve

Clearance between Hydraulic Arm Shaft and Bushing
1. Measure the hydraulic arm shaft O.D. with an outside
micrometer.
2. Measurement the bushing I.D. with an inside micrometer, and
calculate the clearance.
3. If the clearance exceeds the allowable limit, replace the
bushing.
Factory
specifica-
tion
Clearance between
hydraulic arm shaft
and bushing
Allowable
limit
Factory
Hydraulic arm shaft
specifica-
O.D.
tion
Factory
Bushing I.D.
specifica-
(after press fitted)
tion
Operating Pressure of Cylinder Safety Valve
1. Attach the cylinder safety valve to injection nozzle tester with a
safety valve setting adaptor.
2. Measurement the operating pressure of the cylinder safety
valve.
3. If the operating pressure is not within the factory specifications,
adjust by turning the adjusting screw (1).
4. After adjustment, tighten the lock nut (2) firmly.
NOTE
• Use specified transmission fluid (see page G-9.) to test the
operating pressure of the cylinder safety valve.
Cylinder safety valve
Factory specification
operating pressure
Tightening torque Lock nut
(1) Adjusting Screw
(2) Lock Nut
(3) Spring
8-S23
HYDRAULIC SYSTEM
0.125 to 0.230 mm
Right
0.00493 to 0.00905 in.
0.125 to 0.220 mm
Left
0.00493 to 0.00866 in.
0.50 mm
Right
0.020 in.
0.50 mm
Left
0.020 in.
44.920 to 44.950 mm
Right
1.7685 to 1.7696 in.
39.920 to 39.950 mm
Left
1.5717 to 1.5728 in.
45.075 to 45.140 mm
Right
1.7746 to 1.7772 in.
40.075 to 40.140 mm
Left
1.5778 to 1.5803 in.
9Y1210278HYS0042US0
19.7 to 22.5 MPa
200 to 230 kgf/cm
2850 to 3270 psi
59 to 78 N·m
6.0 to 8.0 kgf·m
44 to 57 lbf·ft
(4) Seat
(5) Ball
(6) Housing
9Y1210278HYS0033US0
KiSC issued 08, 2012 A
2
(EU)