JLG 4017 Service Manual - Manual (Page 65)

5.3 4017
Axles, Drive Shafts, Wheels and Tires
5.2 GENERAL INFORMATION
IMPORTANT: To help ensure optimum performance, the
drive shaft assemblies are specially balanced as a unit at
the factory. When servicing any flange yoke, slip yoke or
drive shaft tube, order a complete assembly if
components are bent or damaged. Refer to the
appropriate parts manual for ordering information.
Before performing any inspection, maintenance or
service operation, thoroughly clean the unit. The axles
and drive shafts should be checked and repaired only by
experienced service technicians who are aware of all
safety instructions and particular component features.
Use suitable products to thoroughly clean all
disassembled mechanical parts to help prevent personal
injury to the worker and prevent damage to the parts.
Carefully inspect the integrity of all moving parts
(bearings, yokes, tubes, gears, shafts, etc.) and fasteners
(nuts, bolts, washers, etc.) as they are subject to major
stress and wear. Always replace elastic locknuts and any
damaged, worn, cracked, seized or otherwise improper
parts that could affect the safe and proper functioning of
the machine, axles and drive shafts.
5.3 AXLE ASSEMBLIES
5.3.1 Axle Service and Troubleshooting
This section provides an easy reference guide covering
the most common problems that may occur during
operation of the axles.
5.3.2 Axle Serial Number Plate
The front and rear axle serial number plate (1) is located
on a mounting pad on the front side of the center section
of each axle. Information on the serial number plate is
required in correspondence regarding the axle.
Supply information from the axle serial number plate
when communicating about an axle assembly or axle
components.
5.3.3 Axle Specifications
General axle specifications are found in Section 2,
“General Information and Specifications.” Axle
(differential housing) fluid information is found in Section
2.4, “Fluids, Lubricants and Capacities.” Wheel end fluid
information is found in Section 2.4, “Fluids, Lubricants
and Capacities.”
5.3.4 Axle Maintenance
Note: Detailed axle service instructions (covering the
axle, differential, brakes and wheel-end safety, repair,
disassembly, reassembly, adjustment and
troubleshooting information) are available by contacting
your local JLG distributor for a copy of the Dana-Spicer
Axle Repair Manual (P/N 31200162).
Note: Several special axle service tools are required to
properly service the axle assemblies. Contact your local
Dana-Spicer Service Center for ordering information.
IMPORTANT: When replacing a fastener, replace it with
one of equal or higher grade and quality. Torque
fasteners to the specified value for the application.
IMPORTANT: The use of replacement parts provided by
other than the original manufacturer is not recommended, as
such use may cause axle failure and affect machine safety.
• Some service operations require the use of tools
specifically designed for the purpose. Use the
special tools when and as recommended.
• DO NOT pound, beat or hammer on end yokes
and flanges to remove or to install them. Damage
to axle components can occur. Remove and install
end yokes and flanges by following the recom-
mended procedures in the appropriate Dana axle
service manual.
• DO NOT attempt carrier and differential removal
and installation, and differential and pinion disas-
sembly and assembly, without thoroughly under-
standing the instructions in the appropriate Dana
publications.
• Before disassembling any parts inside the car-
rier, remove the entire axle assembly from the
machine and securely support it with the pinion
facing up in an appropriate stand or rack.
• DO NOT reuse oil or grease seals.
CLEANING: Clean parts with machined or ground
surfaces (such as gears, bearings and shafts) with
emulsion cleaners or petroleum-based cleaners. DO
NOT steam clean internal components and the interior of
the planetary hub and axle housing. Water can cause
corrosion of critical parts. Rust contamination in the MZ1050
1