Landoll L20 Series, Руководство оператора

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3-10 UNLOADING THE TRAILER
WARNING
DO NOT ATTEMPT TO LOAD OR UN-
LOAD TRAILER WITHOUT THE RAMP
ALL THE WAY UNDERNEATH THE
TRAILER BUMPER. PERSONAL IN-
JURY OR DEATH IS POSSIBLE IF
BACK OF TRAILER IS NOT SUP-
PORTED.
3-10.1 Practice all standard industrial safety
standards.
3-10.2 Park towing vehicle and trailer on rela-
tively level ground.
3-10.3 Set towing vehicle’s brakes.
3-10.4 Keeping hands and feet away from ar-
eas that they can become pinched, flip load-
ing ramps down so ramp is completely un-
derneath trailer bumper to support rear of
trailer while unloading.
3-10.5 If base of the ramp is not within 1" of
the ground, properly shore under the ramp to
within 1" of front base of ramp.
3-10.6 Making sure the payload will not roll in
any direction, remove the payload tie-downs.
3-10.7 Unload the payload from the trailer.
3-10.8 Flip the loading ramps back up onto the
trailer and secure to trailer.
3-11 COLD WEATHER OPERATION
3-11.1 Cold weather causes lubricants to con-
geal, insulation and rubber parts to become
hard, which may lead to problems found in
bearings, electrical systems, and air systems.
Moisture attracted by warm parts can con-
dense, collect and freeze to immobilize
equipment. The truck/trailer operator must
always be alert for indicators of cold weather
malfunctions.
3-11.2 During any extended stop period, nei-
ther the service nor parking brake should be
used as they can freeze up. Use wheel
chocks to secure the vehicle from moving.
3-11.3 Check all structural fasteners, air sys-
tem fittings, gaskets, seals and bearings for
looseness that can develop due to contrac-
tion with cold. Do not over-tighten.
3-11.4 Check tire inflation. Tire inflation de-
creases when the temperature decreases.
3-11.5 Periodically check drain holes in the bot-
tom of the relay valve (for trailers with air
brakes) and storage compartments. They must
be open at all times to avoid moisture en-
trapment.
3-12 HOT WEATHER OPERATION
3-12.1 Hot weather operation can cause ex-
pansion of parts, resulting in tightening of
bearings, fasteners, and moving parts. Fail-
ure of gaskets or seals can occur.
3-12.2 The trailer should be parked in the
shade if possible. Long exposure to the sun
will shorten service life of rubber components
(i.e., tires, light and hose grommets, hoses,
etc.) and paint life.
3-12.3 Check tire pressure early in the day be-
fore beginning operations while the tire is
cool. Put all valve stem caps back on after
checking.
3-12.4 If the area is extremely humid, protect
electrical terminals with ignition insulation
spray. Coat paint and bare metal surfaces
with an appropriate protective sealer.
3-12.5 For trailers with air brakes, the use of a
filter-lubricator in the towing vehicle’s air de-
livery system is recommended.
3-8