Actuator Maintenance; Coupler Maintenance - JLG t350 Service And Maintenance Manual

Actuator Maintenance

1. Frequently check brake fluid level (fluid must be
DOT3 or 4 approved, clean and uncontaminated).
2. Make sure mounting bolts are properly tightened 15
to 20 ft lbs (20 to 27 Nm) without deformation of cou-
pler.
3. Inspect entire actuator, replace any bent, worn or
damaged parts immediately.
4. Be constantly aware of systems braking quality,
make periodic checks as described in the brakes
owners manual. Consult certified brake specialist to
make necessary adjustments or repairs. Failure to
do so could result in loss of braking.
5. Be sure hydraulic lines and fittings are tight to avoid
fluid leaks.

Coupler Maintenance

1. Maintain a film of automotive grease in the ball
pocket, ball clamp (front & back), ball clamp spring,
where link pin enters housing, and where the hous-
ing contacts the bracket hardware.
3121198
SECTION 3 - CHASSIS & TURNTABLE
2. Maintain a film of oil on the pivot points and safety
latch spring using SAE 30W motor oil.
3. Keep the ball pocket and mechanism clean because
dirt, paint, etc. can hinder proper operation. When
parking or storing your trailer, keep the bracket and
coupler off the ground so dirt and/or other foreign
material will not build up in the coupler ball pocket.
4. Grease pivot hinge with automotive grease.
– JLG Lift – 3-29