6-4 Functional Checks
Functional Checks
Check the operation of the truck as follows:
Before performing these checks, familiarize yourself with
the operating procedures. Be sure there is enough over
-
head clearance to fully raise the upright.
1. With key switch off, be sure all controls and systems operate
freely and return to neutral properly. Check the:
• Service and parking brakes
• Hydraulic controls: lift, tilt, and aux functions (if installed)
• Accelerator control
• Directional control
• Steering system
2. Test warning devices, horn, lights, and other safety equipment
and accessories.
3. With the truck on, check the dash display. The display should
show the charge remaining on the battery or a fault code. If the
fault code is not an operator fault code, call a service technician.
4. Check hydraulic fluid level: With the truck parked on a level sur-
face, lift the carriage to maximum height while listening for a
high-pitched squeal. This sound, called “cavitation”, indicates
the fluid is low. Add fluid just enough to stop the cavitation.
When the functional checks are completed:
1. Bring truck to complete stop.
2. Put the directional control lever in the NEUTRAL position.
3. Apply the parking brake.
4. Turn the key switch to the OFF position.
5. Lower the lift mechanism fully.
If you are going to leave the truck unattended:
6. Remove the key.
7. Block the wheels if the truck has any possibility of moving.
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