Drain Plug - Hitachi ZW180 Technical Manual

COMPONENT OPERATION / Ride Control Valve

DRAIN PLUG

The drain plug is provided for the ride control valve in
order to return pressure oil in the ride control
accumulator to the hydraulic oil tank for maintenance.
If necessary, loosen the lock nut and the drain plug.
Connect the accumulator port (port SP) to the tank port
(port T).
CAUTION: When the drain plug is loosened
too much, the drain plug is removed from the
valve body and oil may sprush out. Do not
loosen the drain plug by 2 turns or more.
Section B
*: Refer to T3-8-1.
*
Port SP
Lock Nut
Port T
T3-8-11
Drain Plug
Relief Valve
T4GB-03-08-010