Kubota M5040 Workshop Manual page 405

M5040, 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 (refer to "8. SPECIAL TOOLS" at "G.
GENERAL" section).
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 spec.
pressure
NOTE
• Use specified transmission fluid (refer to "4. LUBRICANTS,
FUEL AND COOLANT" at "G. GENERAL" section) to test
the operating pressure of the cylinder safety valve.
(1) Safety Valve Assembly
(2) Adjusting Screw
(3) Lock Nut
(4) Spring
8-S7
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
W1012986
KiSC issued 06, 2008 A