JLG X23J - X700AJ Service Manual - Manual (Page 89)

SECTION 3 - CHASSIS & TURNTABLE
3-62 – JLG Lift – 3121448
First start up and running in
In this first stage it is advised to follow the measures given
below:
1. Check the correctly lubrication of the unit.
2. Fill the motor housing with hydraulic oil from the
drain port (T1) (see the following picture).
3. Bleed air from every part of the hydraulic circuit and
add oil in the tank if necessary.
Figure 3-163.
INFORMATION
THE PRESENCE OF RESIDUAL AIR IN THE HYDRAU-
LIC CIRCUIT WILL MANIFEST ITSELF WITH THE
PRESENCE OF FOAM IN THE TANK AND WILL LEAD
TO A JERKING OF THE MOTOR AS WELL AS EXCES-
SIVE NOISE COMING FROM THE MOTOR AND THE
VALVES.
4. Start the gearmotor at a low speed and gradually
increase it after having verified that it is functioning
correctly without any noises or vibrations.
INFORMATION
DO NOT REACH MAXIMUM PRESSURE UNLESS THE
ENTIRE SYSTEM HAS BEEN FILTERED TO ELIMI-
NATE ANY PARTICLES OF DIRT THAT MAY BE PRES-
ENT.
During the running-in stage follow the steps given below.
5. Check the correct revolution and direction of rota-
tion.
6. Make sure that the functioning is regular and without
any excessive noises and vibrations.
7. Make sure that the oil temperature does not exceed
85-90°C intermittent.
After having terminated this first running-in follow the steps
given below.
8. Check that there are no oil leakages. If present, pro-
ceed to remove them.
9. Check the level of lubricating oil in the gearmotor.
10. Check that there are no other problems in general.