Tadano GR-700N, Service Manual

Page: 96 / 200

Y-9 Y-9
Operation Check (Traveling Device)
83
WY05-3940E
9. Hydraulic suspension
9.1 Normal operation
Check the suspension state and the suspension lock indicator with the following procedure.
Operation
Suspension lock indicator
Suspension state
Turn ON the main switch to start
engine.
↓
Keep pressing the suspension
free switch for 1 second or more.

Check that the suspension emergency free switch
is on the normal position and put the vehicle into a
traveling state while the boom is in a front-side.
Flashes slowly during leveling.
Goes out after leveling. Free after leveling
(Normal traveling starts)
↓
Suspension up/down switch

Leveling is impossible when the road surface is not flat.
In this case, adjust to the lock state by operating the suspension
up/down switch, move to a flat ground, and then operate the
suspension free switch again.
Operate in the following order.
1. Down operation .......... Flashes
(10 seconds or less) slowly
2. Up operation .............. Flashes
slowly
3. Down operation .......... Lights up
(10 seconds or more)
Locked after vehicle height is
lowered
Locked after vehicle height is
raised
Locked after suspension is fully
retracted.

Vehicle height is raised or lowered while the switch is being pressed.
The vehicle height is locked when the operation switch is released.
↓
Turn ON the PTO switch.
Check that the operation status is
on-rubber status on the AML.
Suspension lock indicator:
Lights up
Operation condition: On-rubber
Locked after suspension is fully
retracted.
↓
Turn OFF the PTO switch.
Keep pressing the suspension
free switch for 1 second or more.
Flashes slowly during leveling.
Goes out after leveling.
Free after leveling
(Normal traveling starts)
↓
Flashes slowly: 0.8 second interval Flashes fast: 0.4 second interval