TM 5-3805-280-24-1
Tests
9. For arm out (J) and bucket curl (N) circuit relief valves,
turn the second adjusting plug (G) for system relief
valve (D) in 1/4 turn to increase the pressure setting.
9025
25
10. Actuate the function over relief for circuit relief valve
75
being checked.
Record the pressure reading.
Arm Out (Rod End)--Specification
Pressure ................................................................... 39 225 + 980 - 0 kPa
(390 + 9.8 - 0 bar)
(5690 + 140 - 0 psi)
Bucket Curl (Head End)--Specification
Pressure ................................................................... 39 225 + 980 - 0 kPa
(390 + 9.8 - 0 bar)
D--System Relief Valve
(5690 + 140 - 0 psi)
E--First Adjusting Plug
F--27 mm Nut
G--Second Adjusting Plug
Circuit Relief Valve--Specification
H--32 mm Nut
I--Piston
Pressure ........................................................ 5295 kPa (53 bar) (770 psi)
J--Arm Out Circuit Relief Valve
approximate change per 1/4 turn
M--Boom Down Circuit Relief Valve
of adjusting screw
N--Bucket Curl Circuit Relief Valve
O--Arm In Circuit Relief Valve
Continued on next page
TX,9025,GG2649
1908JUN986/7
6-206