JLG T350 Service Manual - Manual (Page 49)

SECTION 3 - CHASSIS & TURNTABLE
3121198 – JLG Lift – 3-13
travel. Plush the lever knob down to engage the
locking notch.
4. Back the trailer up.
AVOID SHARP TURNS. THIS COULD BEND, CREATE EXTREME
STRESS, OR FRACTURE EITHER THE ACTUATOR OR TRAILER
TONGUE.
5. If the machine is to be uncoupled from the tow vehi-
cle after backing with the lever knob engaged, block
all wheels and pull forward slightly to take strain off
of the actuator. Uncouple the actuator by lifting the
release handle and raising the trailer tongue. Make
sure the lever knob is in the towing position (A)
when uncoupling from the trailer.
Maintenance
1. Keep all links and pivots lubricated to prevent rust-
ing and ensure ease of operation. Use SAE 30 oil,
lubricate inside release handle and inside actuator
body from the underside of the actuator.
NOTE: Lubricate the hitch ball with conventional automotive
grease or a lubricant made for hitch balls.
2. Check for leaks in the brake system. Periodic
checks should be made on all hoses and fittings to
guard against cuts and worn hoses which may
cause failure (leaks, rupturing under pressure, and
collapsing). Replace defective hoses.
3. Check brake fluid level in the master cylinder reser-
voir. Keep filled to within 1/2" (13 mm) from the top of
the reservoir. Use only a DOT type 3 or 4 brake fluid.
4. Flush the system yearly or when system is known to
be contaminated.
NOTE: Wheel bearings and seals should be inspected and
packed at this time.
Extended Storage Instructions
Preventative maintenance is recommended for extended
periods of storage.
1. Check brake system for proper fluid level in master
cylinder, bleed all lines.
2. Lubricate all links and pivots to prevent any rusting.
3. Remove wheel and drum assemblies and spray a
good anti-corrosion compound under rubber boot
on forward end of brake wheel cylinder. Avoid spray-
ing drum and lining.
4. Grease all bearings and reinstall wheel and drum
assemblies.
5. Make sure breakaway cable is fully released.
6. After extended storage, refer to Maintenance to
insure trailer readiness for towing.
7. Adjust drum brakes.
Proper Towing Checklist
1. Inspect brake fittings for leaks.
2. Adjust brakes every 2000 miles.
3. Lubricate all mechanical moving parts.
4. Inspect the breakaway cable for any kinks.
5. Verify the correct size ball is used, without chips,
dirt, or hairline cracks.
6. Securely attach safety chains to trailer and tow vehi-
cle.
7. For proper braking, trailer should be level when
attached to tow vehicle to produce a positive tongue
load.
8. DOT 3 or DOT 4 brake fluid should be used in mas-
ter cylinder and fill it from 1/2 full to 1/2" (13 mm)
from top of cylinder reservoir.