Hydraulic System; Relief Valve Pressure Check - Doosan D15S-5 Specifications Systems Operation Testing & Adjusting

Hydraulic System

Relief Valve Pressure Check

Use the pressure Gauge kit to check the relief valve
pressure.
Hydraulic oil, under pressure can remain in the
hydraulic system after the engine and pump
have been stopped. Personal injury can be
caused if this pressure is not released before
any work is done on the hydraulic system. To
prevent possible injury, lower the carriage to the
ground, turn the key switch off and move the
control levers to make sure all hydraulic
pressure is released before any fitting, plug,
hose or component is loosened, tightened,
removed or adjusted. Always move the lift truck
to a clean and level location away from the travel
of other machines. Be sure that other personnel
are not near the machine when the engine is
running and tests or adjustments are made.
Model
D15S, G(C)15S-5
D18S, G(C)18S-5
D20S, G20SC-5
Remove the plug from elbow (1). Install pressure-checking adapter (4) and, connect pressure-tube (5) and
pressure gage (6). Pressure gage (6) has a range of 2,8000kpa (4,000psi)
Vehicle Systems
WARNING
Mast
STD/FF/FFT
STD/FF/FFT
STD/FF/FFT
Relief pressure gage point (1)
RELIFE PRESSURE
Main relief pressure-lift
Psi
2,550±35 17,600±250
2,880±35 19,860±250
3,125±35 21,550±250
51
Auxiliary Relief
Valve
Pressure
Kpa psi
2,040
±50
Testing and Adjusting
Kpa
14,000
±350