Gradall XL3100IV, Operators Safety Manual

Page: 73 / 172

Section 3 - Operation
3-3 80804002
3.2 CHECKS BEFORE UNDERCARRIAGE OPERATION
This section outlines the checks to be performed at the beginning of each work shift
or at each change of operator. Refer to page 3-34 for procedure to check brakes
after remote control operation and digging. Repair any deficiencies before driving or
operating the equipment.
1. Check all lights and turn signals, defroster, windshield wiper and washer for
proper operation.
2. Check park brake and service brakes to ensure they are working properly.
3. Check operation of steering while moving slowly in first gear. Be alert for any
increase in effort needed to turn wheels and any unusual steering response to
normal steering effort.
4. Check operation of horn, back-up alarm, and any other signal devices. Must be
audible from inside operator’s cab with the engine running.
5. Observe oil pressure gauge with engine running at operating temperature and
speed.
6. Observe voltmeter indication of alternator output. Proper output is
approximately 24 V. with engine running at 2000 RPM (without optional grid
heaters active).
7. Observe water temperature gauge. Proper operating temperature is
approximately 160-210°F (71-104°C).
8. Observe low air warning light. Light should continue to illuminate and an audible
alarm will sound until brake system pressure reaches approximately 60 psi.
Proper brake system pressure is 60-125 psi. Do not release parking brake or
move undercarriage while low air warning light is illuminating.