Yale GDP040-070VX, Operating Manual

Page: 165 / 204

Steering System
WARNING
The lift truck has hydraulic power steering. The steering
can be difficult if the engine is not running.
Make sure the steering system operates smoothly and pro-
vides good steering control. Make sure the steering column
can be adjusted and the gas cylinder function is correct.
Control Levers and Pedals
Check that the control levers for the transmission, mast, and
attachment operate as described in Table 3. Check that the
pedals operate correctly as described in Table 3.
Lift System Operation
WARNING
When working on or near the mast, see Safety Proce-
dures When Working Near the Mast in the Periodic Main-
tenance for your lift truck.
Lower the lift mechanism completely. Never allow any
person under a raised carriage. Do not put any part of
your body in or through the lift mechanism unless all
parts of the mast are completely lowered and the engine
is STOPPED.
If the mast cannot be lowered, use chains on the mast
weldments and carriage so that they can not move. Make
sure the moving parts are attached to a part that does
not move. See the Periodic Maintenance section of the
service manual for additional information.
Do not try to find hydraulic leaks by putting hands on
pressurized hydraulic components. Hydraulic oil can be
injected into the body by the pressure.
Perform the following checks and inspections:
1. With engine turned OFF , check for leaks in the hydraulic
system. Check the condition of the hydraulic hoses and
tubes.
NOTE: Some parts of the mast move at different speeds dur-
ing raising and lowering.
2. Slowly raise and lower the mast several times without a
load. Raise the mast to its full height at least once. The mast
components must raise and lower smoothly in the correct
sequence. Hose must track properly during operation.
Maintenance
163