wsm M6040 Workshop Manual page 414

M6040, M7040, WSM
Safety Valve Setting Pressure Test Using Injection Nozzle
Tester
1. Remove the safety valve assembly (1).
2. Attach the safety valve to an injection nozzle tester with a safety
valve setting adaptor (see page G-74).
3. Measure the operating pressure of the safety valve.
4. If the operating pressure is not within the factory specifications,
adjust by turning the adjusting screw (2).
5. After adjustment, tighten the lock nut (3) firmly.
(When reassembling)
• Install the safety valve to the hydraulic cylinder block, taking
care not to damage the O-ring and apply transmission fluid.
Safety valve assembly
Tightening torque
Safety valve lock nut
Safety valve operating
Factory specification
pressure
NOTE
• Use specified transmission fluid (see page G-10) to test the
operating pressure of the cylinder safety valve.
(1) Safety Valve Assembly
(2) Adjusting Screw
(3) Lock Nut
(4) Spring
8-S8
HYDRAULIC SYSTEM
39.2 to 49.0 N·m
4.0 to 5.0 kgf·m
28.9 to 36.2 lbf·ft
58.8 to 78.5 N·m
6.0 to 8.0 kgf·m
43.4 to 57.9 lbf·ft
23.1 to 24.5 MPa
2
235 to 250 kgf/cm
3342 to 3556 psi
(5) Seat
(6) Ball
(7) Housing
9Y1210143HYS0006US0
KiSC issued 07, 2012 A