JLG Triple-L Operator Manual - Manual (Page 54)

SECTION 4 - SERVICE AND MAINTENANCE
4-14 – Triple-L-Trailer – 3121224
Battery (Option)
A battery operates the hydraulic pump motor that lowers
and raises the trailer bed. If the trailer has electric brakes,
this same battery supplies the power to operate the trailer
brakes if the trailer uncouples from the tow vehicle activat-
ing the breakaway brake switch. The battery may be kept
charged either by the tow vehicle or by an available trickle
charger. Be sure to check, maintain and replace the bat-
tery according to the battery manufacturers instructions.
Disconnect the accessory battery when you do not plan to
be using the trailer for an extended period, such as sea-
sonal storage. The accessory battery must be kept in a
charged condition during storage. The battery could
freeze and break if it becomes discharged.
4.8 WHEEL ALIGNMENT
To check wheel alignment, position a straight edge at the
center line of the wheels and see that all sidewalls are in
alignment. Because of movement of tandem axles when
turning, be sure trailer has been pulled in a straight line
before checking. If correction is needed, loosen the 8
spring pad bolts (4 at top and 4 at the bottom spring) and
then reposition wheel. Once corrected, retighten all bolts.
Torque to specified ft. lbs. (Refer to Table 4-5, Wheel
Torque Chart).
4.9 SUSPENSION
There are two types of suspension used on various trailer
models.
Slight wheel alignment can be made with the 8 bolts loos-
ened on the springs.
1. Lower deck and jack wheels off ground.
2. From the inside loosen the 8 bolts.
3. Do not remove wheels when aligning.
Figure 4-9. Dual, Quadra Spring Suspension