TM 5-3810-307-24-1-1
CIRCUIT RELIEF SETTINGS TABLE
Valve Bank Circuit
Relief - psi (kPa)
Main Relief - psi (kPa)
Main Hoist . . . . . . . .
.
.
.
.
.
.
................
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Auxiliary Hoist . . . . . .
.
.
.
.
.
.
................
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Lift.. . . . . . . . . . . . .
.
.
.
.
.
.
1,900 (13,101) Retract.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Telescope . . . . . . . .
.
.
.
.
.
.
3,700 (25, 511). . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Clamshell. . . . . . . . .
.
.
.
.
.
.
................
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Swing . . . . . . . . . . .
.
.
.
.
.
.
................
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1,500 (10,342)
Outrigger . . . . . . . . .
.
.
.
.
.
.
2,000 (13,790). . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
Rear Steer . . . . . . . .
.
.
.
.
.
.
2,500 (17,237). . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3,500 (24,132)
Front Power Steering .
.
.
.
.
.
.
2,500 (17,237). . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
Swing Brake . . . . . . .
.
.
.
.
.
.
. 250 (1,724) . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
Controllers (Joysticks) .
.
.
.
.
.
.
. 450 (3,111) . . . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
3.
Move the SWING control and hold
NOTE
momentarily. Note the maximum reading on the
pressure gauge. If the reading is not 100 psi (
An accurate 0 to 5,000 psi (0 to 34, 475
689.5 kPa) of that listed in the Main Relief Settings
kPa) pressure gauge should be used
Table, adjust the pressure setting as necessary.
when adjusting the relief valves.
Pressure test ports are located on the
4.
Shut down the engine. Remove the pressure
HYDRAULIC TEST PANEL. These test
gauge and install the pipe plug.
ports are connected to the inlet line of
each valve bank.
Five Section Valve Bank.
When the proper pressure setting has been attained,
1.
Remove
the
pipe
plug
from
the
tighten the adjustment screw locknut and recheck
TELE/LIFT/CLAMSHELL pressure test port on the
the pressure. It is possible that the setting may
Hydraulic Test Panel and install the pressure gauge.
change while tightening the locknut.
2.
Set the throttle to 2,800 rpm.
PREPARATION.
3.
Fully extend the boom lift cylinder and hold
1.
Start and warm up the engine until the
momentarily. Note the maximum reading on the
hydraulic oil temperature reaches a minimum of 70F
pressure gauge. If the reading is not 100 psi (
(21C).
689.5 kPa) of that listed in the Main Relief Settings
WARNING
Table, adjust the pressure setting as necessary.
Do not attempt to loosen fittings in
4.
Shut down the engine. Remove the pressure
pressurized lines or while the hydraulic
gauge and install the plug.
pumps are in operation.
CIRCUIT RELIEF VALVE ADJUSTMENT.
2.
Shut down the engine.
Outrigger.
MAIN RELIEF VALVE SETTINGS.
1.
Disconnect a retract line from any one of the
Single Section Valve Bank. (Swing Circuit)
outrigger jack cylinders and install the pressure
gauge in this line.
1.
Remove the pipe plug from the SWING
pressure test port on the Hydraulic Test Panel and
2.
Set the throttle to 2,800 rpm.
install the pressure gauge.
3.
On the front console position, the outrigger
2.
Set the throttle to 2,800 rpm.
extension/retraction toggle switch to RETRACT.
2-8-27
