General Information; Connecting The Brake; Filling-Up The Gearbox With Lubricating Oil - JLG 1200SJP Service And Maintenance Manual

5. Make sure that the oil temperature does not exceed
values listed previously.
After having finished running-in the gearbox, follow the steps
given below.
6. Check that there are no oil leaks. If leaks are present,
fix them before proceeding.
7. Check the level of oil in the gearmotor.
8. It possible that the presence of air in the system
during the first start up could cause the application of
the brake to be slowed down. It is advised to
repeat the application and release functions of the
brake to purge air from the brake.
9. Check that there are no other problems in general.

General Information

The gearbox is designed and built for wheel drive.
The unit includes planetary gearbox, 3 stages, rotating hous-
ing type.
The illustrations show the parts and the main functions of the
gearbox.
A strict and consistent compliance with the specifications of
this technical manual ensure the minimum operating costs
and a longer unit life.
Photographic documentation and drawings are supplied for
educational purposes, so as to safely and properly carry out
maintenance operations.
Minor deviations from pictures of this manual may appear on
the actual gearbox. However, these discrepancies are not rele-
vant to the main parameters, or maintenance functions.
3121142
SECTION 3 - CHASSIS & TURNTABLE

Connecting the Brake

The gearbox is fitted with a negative multi disk safety brake
with hydraulic control release (parking brake). For information
regarding the characteristics of the brake refer to the installa-
tion drawing.
Table 3-3. Brake Technical Data
Brake Release Pressure
Maximum Operating Pressure Brake
Braking Torque

Filling-up the Gearbox with Lubricating Oil

The motor and the gearbox have separate lubrication. The
gearbox is lubricated by oil splashing. The recommended type
of oil is SAE 80W/90 or SAE 85W/140 with EP features comply-
ing with MIL-L-2105 C & API GL5. Refer to Table 3-4, Suggested
Lubricants According SAE 80W/90 and SAE 85W/140 API GL5
Grade.
NOTE: During operation the oil temperature must not exceed 85-
90° C intermittent.
(16 bar)
(50 bar)
(265 ± 10% Nm)
3-31