
March 2022
Maintenance Manual
Quarterly Maintenance Procedures
Part No. 1268489GT
S
®
Booms • Z
®
Booms
51
4 Check to be sure the engine pulley and the
generator pulley are aligned within
specification using a straightedge.
1 engine pulley
2 straightedge
3 maximum pulley offset
4 generator pulley
Note: If alignment does not meet specification,
Refer to Repair Procedure in the appropriate
Service and Repair Manual for your machine,
How
to Install the Engine Drive Pulley
to adjust the
pulley alignment.
Pulley alignment, maximum offset
0.0625 inch
1.58 mm
5 Inspect the generator belts for:
•
Cracking
•
Glazing
•
Separation
•
Breaks
6 Replace both belts if any damage is found.
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
1/4 inch
6.5 mm
8 Check the torque of the pulley retaining nut on
the generator.
Generator pulley
retaining nut torque
80-90 ft-lbs
108-122 Nm
Engine pulley retaining bolts
108 in-lbs
12.2 Nm
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.
Summary of Contents for Genie Lift Guard S-40
Page 198: ......