Tadano GR-300EX-3, Service Manual

Page: 59 / 157

Y-8 Y-8
Operation Check (Crane Operation)
46
WY05-4780E
7. Suspension lock
[NOTICE]
Condition
• Crane status for check : On-rubber configuration
: Boom forward (over-front)
• Engine speed : Approximately 700 min
-1
• Vehicle speed : 0 km/h
• Shift lever : N position
While PTO is disengaged (OFF), suspension can
be locked and unlocked.
While PTO is engaged (ON), suspension can be
locked but cannot be unlocked.
[Procedure]
1. Press the suspension lock switch to the lock side.
2. Check that after 1 second, the indicator lamp
begins to flash.
3. Check that the lamp stops flashing and remains lit
6 seconds after it starts flashing. Then release the
switch.
4. Stop the engine. Check that the suspension lock
cylinders are fully retracted (4 locations).
5. Restart the engine.
(At this time, check that the indicator lamp is lit)
6. Press the suspension lock switch to the unlock
side.
7. Check that after 1 second, the indicator lamp is
not lit.
8. Stop the engine. Check that the suspension locks
are released (4 locations).