Genie Genie Articulated Boom Lift S-120 S-120

- Perform Maintenance – Jib Rotate Bearing - SX-150 and SX-180

Periodic inspection of jib bearing wear is essential to safe machine operation, good machine performance and service life. Continued use of a worn jib bearing could create an unsafe operating condition, resulting in death or serious injury and component damage

Note: Perform this procedure with the boom fully retracted and in the stowed position and with the machine on a firm, level surface

1. Check the Jib Rotator Fastener torque

2. Using a star pattern, confirm that each jib rotator outer mounting bolt is torqued in sequence to specification. Repeat the procedure for the inner mounting bolts

Jib boom rotate bearing bolts: 200 ft-Ibs/ 271 Nm

3. While rotating the jib, pump grease into each bearing lubricating grease fitting until fresh grease is visible at the outer seal

4. While rotating the jib, pump grease into the worm gear grease fitting until fresh grease is visible at one sealing lip or bearing cap

- Test the Emergency Power System (excludes ALC-600 and ALC-1000 Models)

1. Turn the key switch to ground control and pull out the red Emergency Stop button to the on position at both the ground and platform controls

2. At the ground controls, break the security tie and lift the emergency power switch cover (if equipped)

3. Simultaneously hold the emergency power switch on and operate each boom function through a partial cycle

• Result: All boom functions operate

4. Close the emergency power switch cover and secure the cover with a security tie (if equipped)

5 Turn the key switch to platform controls

6. At the platform controls, break the security tie and lift the emergency power switch cover (if equipped). 7. Press down on the foot switch and simultaneously hold the emergency power switch on and operate each boom function through a partial cycle

• Result: All boom functions operate

- Check the Turntable Rotation Gear Backlash - ALC1000 Models

Properly adjusted turntable rotation gear backlash is essential for good machine performance and service life. Improperly adjusted turntable rotation gear backlash will cause the machine to perform poorly and continued use will cause component damage. The turntable rotation drive hubs are mounted on an adjustable plate on the swing chassis behind the fixed side cover at the ground controls side of the machine

This procedure does not apply to the Z-60/80 models

Note: Perform this procedure with the machine fully stowed and the counterweight at the square end of the machine

Note: Perform this procedure with the machine on a firm, level surface that is free of obstructions

1. Rotate the turntable until the boom is centered between the circle end wheels

2. Apply approximately 20 lbs / 89 N of side force to the platform, moving the platform to one side as far as it will go

3. Using a feeler gauge, measure the gap between the swing hub pinion gear and the turntable rotation bearing at the center tooth on one of the drive hubs. The gap should be measured on one side of the pinion gear on the center tooth

Note: The pinion gear can be accessed on the outside of the chassis under the pinion gear guard

- Oil, coolant, fuel, exhaust and vacuum

hoses - check for leaks, damage or deterioration

- Electrical wiring - check for chafing or damage

- Cylinder head bolts - torque (40.5 ft-lbs / 55 Nm)

- Check the Free-wheel Configuration

Proper use of the free-wheel configuration is essential to safe machine operation. The free-wheel configuration is used primarily for towing. A machine configured to free-wheel without operator knowledge may cause death or serious injury and property damage

Models with 2 wheel steer will be referenced with Non-steer and steer wheels

Models with 4 wheel steer will be referenced with Circle-end and Square-end wheels

Collision hazard. Select a work site that is firm and level

Component damage hazard. If the machine must be towed, do not exceed 2 mph / 3.2 km/h

Non-steer or Circle-end wheels: