OPERATING THE MACHINE
5-30
EMERGENCY BOOM LOWERING PROCE-
DURE (Without hose-rupture safety valve)
CAUTION: 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. Loosen lock nut (1). Loosen screw (2) one half of a
turn. The boom will start to lower. The boom lowering
speed can be somewhat adjusted by loosening screw
(2) more.
NOTE: Never loosen screw (2) more than 2 turns.
Screw (2) may come off.
2. After the bucket is lowered to the ground, retighten
screw (2), then lock nut (1) to the specifications be-
low.
Lock Nut (1)
Tool : 13 mm
Torque : 13 N
x
m (1.3 kgf
x
m, 9.4 lbf
x
ft)
Screw (2)
Tool : 4 mm (Hexagonal wrench)
Torque : 7.0 N
x
m (0.7 kgf
x
m, 5.0 lbf
x
ft)
NOTE: Excessive leakage may result if the screw and
the lock nut are tightened insufficiently. Be sure
to retighten the screw and the lock nut to speci-
fications.
T1CD-05-04-002
T1CD-05-04-001
Rear
Emergency Valve
1
2
Emergency Valve
To Next Page