March 2010
Section 4 • Repair Procedures
Part No. 57.4400.9203 GTH-4016SR • GTH-4018SR
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Repair Procedures
Observe and Obey:
Repair procedures shall be completed by a
person trained and qualified on the repair of
this machine.
Immediately tag and remove from service a
damaged or malfunctioning machine.
Repair any machine damage or malfunction
before operating the machine.
Before Repairs Start:
Read, understand and obey the safety rules
and operating instructions in the appropriate
operator’s manual on your machine.
Be sure that all necessary tools and parts are
available and ready for use.
Read each procedure completely and adhere
to the instructions. Attempting shortcuts may
produce hazardous conditions.
Unless otherwise specified, perform each
maintenance procedure with the machine in the
following configuration:
- Machine parked on a firm, level surface
- Boom in the stowed position
- Key switch in the off position with the key
removed
- Wheels chocked
About This Section
Most of the procedures in this section should only
be performed by a trained service professional
in a suitably equipped workshop. Select the
appropriate repair procedure after troubleshooting
the problem. Perform disassembly procedures
to the point where repairs can be completed. To
re-assemble, perform the disassembly steps in
reverse order.
Symbols Legend
Safety alert symbol—used to alert
personnel to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
DANGER
Used to indicate the presence of
an imminently hazardous situation
which, if not avoided, will result in
death or serious injury.
WARNING
Used to indicate the presence of
a potentially hazardous situation
which, if not avoided, could result
in death or serious injury.
CAUTION
Used to indicate the presence of
a potentially hazardous situation
which, if not avoided, may cause
minor or moderate injury.
NOTICE
Used to indicate the presence of
a potentially hazardous situation
which, if not avoided, may result in
property damage.
Indicates that a specific result is expected after
performing a series of steps.
Indicates that an incorrect result has occurred
after performing a series of steps.
