OPERATING THE MACHINE
5-25
How to Lower Boom in Case of Emergency and
When Engine Stops
(Without hose-rupture safety valve)
d
WARNING: Prevent personal injury. Confirm that no
one is under the front attachment before starting the
procedure below.
In case the engine suddenly stops and the engine cannot be
restarted, lower the boom by following the procedure below.
IMPORTANT: Never loosen screw (2) more than 2 turns.
Screw (2) may come off.
1. Loosen lock nut (1) in the emergency valve on the right.
Loosen screw (2) one half of a turn. The boom lowering
speed can be partly adjusted by loosening screw (2)
further.
IMPORTANT: Excessive leakage may result if screw (2)
and lock nut (1) are tightened insufficiently. Be sure to
retighten screw (2) and lock nut (1) to specifications.
2. After the boom is lowered, tighten screw (2) and tighten
lock nut (1) to the specifications below.
Locknut (1)
Tightening Torque: 13 N·m (1.3 kgf·m)
Screw (2)
Tightening Torque: 7 N·m (0.7 kgf·m)
Emergency Valve
1
2
T1V1-03-03-038
1
2
MDAA-05-008
ZX135US-6
1
2
ZX225USLC-6, 345USLC-6
MDAA-05-003
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