JLG T500J Service Manual - Manual (Page 65)

SECTION 3 - CHASSIS & TURNTABLE
3121200 – JLG Lift – 3-29
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 dam-
aged 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 housing con-
tacts the bracket hardware.
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.