JLG G12-55A AccuPlace Service Manual - Manual (Page 69)

6.3 G10-55A & G12-55A AccuPlace
Transmission
6.2 TRANSMISSION DESCRIPTION
Instructions in this section pertain mainly to general
specifications, towing, maintenance information, and
transmission removal and installation procedures. for
internal transmission service instructions and detailed
specifications contact your local JLG distributor for a copy
of the ZF Repair Manual P/N 5872 135 002
(JLG P/N 31200241).
6.3 TRANSMISSION SERIAL NUMBER
The transmission serial number plate is located on the
front of the transmission case behind the oil dipstick.
Information specified on the serial number plate includes
the transmission model number, the transmission serial
number and other data. Information on the serial number
plate is required in correspondence regarding the
transmission.
6.4 TRANSMISSION SPECIFICATIONS
6.4.1 Transmission Maintenance
Cleanliness is of extreme importance. Before attempting
any repairs, thoroughly clean the exterior of the
transmission to help prevent dirt from entering while
performing maintenance checks and procedures.
Section 6.4.2, “Transmission Maintenance Schedule,”
provides a suggested maintenance schedule with
references to pertinent procedures and instructions in this
manual. To help prevent transmission problems before
they occur, follow the maintenance schedule.
Note: Lubrication and Maintenance chart decals are
located inside the engine compartment access door.
These decals contain a general maintenance schedule
that should be followed to maintain the machine in good
operating condition. Refer to Section 2, “General
Information and Specifications.” The same schedule
information is presented in the appropriate Operation &
Safety Manual, with a detailed account of how to perform
the procedures.
6.4.2 Transmission Maintenance Schedule
Complete transmission maintenance information is
located in the appropriate Operation & Safety Manual.
• At ten hour intervals, check the transmission oil
level. Refer to the appropriate Operation & Safety
Manual.
• When the machine completes its first 50 hours of
use, change the transmission filter and oil. Refer
to the appropriate Operation & Safety Manual.
• At 1,000 hour intervals, change the transmission
oil and filter. Refer to the appropriate Operation &
Safety Manual.
Periodically, depending on operating conditions and
other factors, back flush the transmission oil cooler,
which is located in or behind the radiator. ALWAYS back
flush the transmission oil cooler after removing the
transmission for repair or replacement.
The transmission oil cooler outlet hose, routed to the
lower oil cooler fitting, is located on the top of the
transmission. The transmission oil cooler inlet hose,
routed to the upper oil cooler fitting, is located on the top
of the transmission. (Refer to Section 7.2.3, “Radiator
Replacement.”)
Disconnect and back flush the oil cooler portion of the
radiator or the oil cooler (located behind the radiator) with
oil and compressed air until all foreign material is
removed. If necessary, remove the radiator or oil cooler
from the machine, and clean the oil cooler circuit using oil,
compressed air and steam.
IMPORTANT: DO NOT use flushing compounds for
cleaning purposes.
6.5 TRANSMISSION REPLACEMENT
Note: Contact the JLG Service Department if internal
transmission repair is required during the warranty
period.
Note: To help ensure safety and optimum performance,
replace the transmission if it is damaged. Refer to the
appropriate parts manual for ordering information.
Cleanliness is of extreme importance. Before attempting
to remove the transmission, thoroughly clean the exterior
of the transmission to help prevent dirt from entering
during the replacement process. Avoid spraying water or
cleaning solution onto or near the transmission shift
solenoids and other electrical components.
WARNING
DO NOT service the machine without following all
safety precautions as outlined in Section 1, “Safety
Practices,” of this manual. Failure to follow the safety
practices could result in death or serious injury.