Maintenance Manual April 2018
Quarterly Maintenance Procedures
46 S
®
Booms • Z
®
Booms Part No. 1268489GT
7 Check the generator belts for proper tension. If
the belt deflection is not within specification,
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How to Adjust the Generator Belts.
1 engine pulley
2 generator belts
3 generator pulley
Belt deflection, maximum allowable
8 Check the torque of the pulley retaining nut on
the generator.
80-90 ft-
108-
Engine pulley retaining bolts
108 in-
9 Connect the positive lead of a multi meter to
the positive post on the back of the alternator.
Connect the negative lead to the negative
post. Set the meter to DC voltage.
10 Start the engine from the ground controls.
Result: The voltage does not exceed 54V DC.
Note: To adjust the voltage regulator, Refer to
Repair Procedure in the appropriate Service and
Repair Manual for your machine, How to Adjust the
Generator Voltage Regulator.
Q-8
Check the Oscillate Directional
Valve Linkage (if equipped)
Genie specifications require that this procedure be
performed quarterly.
Note: Perform this test only on models equipped
with an oscillating axle.
Proper axle oscillation is essential to safe machine
operation. If the oscillate directional valve linkage is
not operating correctly, the stability of the machine
is compromised and it may tip over.
1 Remove the drive chassis cover and the axle
covers from the non-steer end of the drive
chassis.
2 Locate the oscillate directional valve inside of
the non-steer axle and inspect the linkage for
the following:
• Lock nut is tight against yoke
• Yoke clevis pins are installed
• Cotter pins are installed through clevis pins
• Linkage is properly attached to directional
valve
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