Emergency Boom Lowering Procedure - Hitachi ZAXIS 30U-5N Operator's Manual

Emergency Boom Lowering Procedure

d
WARNING: Prevent personal injury. Confirm that no
one is under the front attachment before starting the
procedure below.
If the engine stalls and cannot be restarted, lower the boom
to lower the bucket to the ground referring to the emergency
boom lowering procedure stated below.
1. Remove the cover above the hydraulic oil tank. Loosen
filler cap (1) on the hydraulic oil tank to release air
pressure from the hydraulic oil tank.
d
WARNING: Be sure to work only after oil temperature
is low or before operation. Failure to do so may allow
high temperature oil to spray, possibly causing severe
burns.
2. Remove bolts (2) from the front and left side of cover (3)
to remove cover (3).
3. Lower the boom in the procedures on the next page.
OPERATING THE MACHINE
5-28
1
ZX30U-5N, 35U-5N
1
ZX50U-5N, 60USB-5N
3
MADB-00-017
MADB-00-018
2
MADB-05-005