Table of Contents
Advertisement
OPERATING INSTRUCTIONS
Pre-Coupling of Trailer and Truck
1. Slowly back the truck (towing vehicle) up to the front
end of the trailer so the hitch of the trailer is centered
with the truck. Stop the towing vehicle just inches
ahead of the trailer. Set truck parking brake.
2. The bolt on hitch can be adjusted to different heights.
Make sure the hitch height is at the correct height so
the trailer deck is about parallel to the ground when
loaded.
3. Make sure the towing truck hitch height is at the
correct height so the trailer deck is about parallel to
the ground when loaded.
Operating pressures greater than 2500 psi can
cause damage to the trailer.
Figure 3-1: Service Hookups
3-2
CAUTION
4. If the trailer hydraulics are powered by the truck
hydraulics clean the hydraulic quick couplers and
connect the trailer to the truck hydraulic couplers. If
trailer is equipped with auxiliary engine hydraulic
power start the engine and, after warm up, advance
throttle to desired speed.
5. Check the trailer hitch height. The hitch should be the
same height, to slightly higher, than the hitch of the
towing vehicle. If the trailer hitch is bolted to the
trailer at the correct height, according to Steps 2
and 3, raise or lower the hitch by operating the bed
tilt hydraulics until the proper height has been
obtained.
Failure to chock trailer wheels could allow
movement of the trailer resulting in serious
personal injury, death, or damage to property in
its path.
6. Connect the service and emergency air hoses of the
towing vehicle to their respective gladhand on the
trailer. The towing vehicle's air hose couplings are
attached and locked to the appropriate gladhands;
red emergency line to the gladhand with the
"EMERGENCY" tag, and the blue service line to
the gladhand with the "SERVICE" tag (See
Figure 3-1.)
a. Check the air brake operations of the trailer as
follows:
Apply brakes and inspect brake action on all
wheels for prompt application.
Release brakes. All brakes should release
immediately. Air pressure should discharge
quickly from the booster valve.
Disconnect the emergency air line from the trailer
gladhand. Trailer brakes should promptly set.
Re-connect the emergency air line to the trailer.
The trailer brakes should release.
b. Set the trailer brakes.
WARNING
F-563-0610 Edition
Advertisement
Table of Contents
