CAUTION
IF A FAULT EXISTS IN THE SEMI-
TRAILER ABS, NORMAL BRAKING
WILL OCCUR, BUT WHEELS MAY
LOCK. SERVICE THE ABS AS SOON
AS POSSIBLE.
3-1.5
Electrical
The only electrical operation required of the
operator is interconnection of the towing vehicle
electrical cable plug with the semitrailer electrical
receptacle. It is necessary that the tractor blue wire
is connected to the appropriate electrical source on
the tractor.
3-1.6
Hydraulic
The controls can also be operated by a radio
transmitter that is supplied standard. A hydraulic
pump must be coupled to the trailer hydraulic sys-
tem before any hydraulic controls can function. The
hydraulic system is designed to operate at 2500
psi maximum pressure and and approximately 17
gpm flow capacity.
3-2 PRE-COUPLING OF SEMITRAILER AND TRACTOR
3-2.1
Slowly back the tractor up to the front
end of the semitrailer so the kingpin of the
semitrailer is centered between the tractor
fifth wheel jaws. Stop the tractor several
inches ahead of the semitrailer. Set tractor
parking brake.
CAUTION
DO NOT OPERATE TRAILER HYDRAU-
LICS UNLESS TRACTOR BRAKES ARE
LOCKED.
3-2.2
The king pin plate should be the same
height as, or slightly lower than, the latch
area of the fifth wheel plate of the tractor. If
necessary, connect the tractor hydraulic
lines. Use the
TRAILER TILT CONTROL
(See Figure 3-2)
to raise or lower the king-
pin plate sufficiently to allow proper coupling.
Drain all air and moisture from the tractor air
brake system in accordance with the tractor
manufacturer’s instructions.
3-2.3
Connect the service and emergency air
hoses of the tractor to their respective glad-
hand on the front of the semitrailer. The trac-
tor’s air hose couplings are then attached
and locked to the appropriate gladhands; the
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)
. Chock the semitrailer
wheels before activating the semitrailer air
supply valve in the tractor. Set the semitrailer
brakes.
3-2.4
Check the air brake operations of the
semitrailer as follows:
a.
Apply brakes and inspect brake action on all
wheels for prompt application.
b.
Release brakes. All brakes should release
immediately. Air pressure should discharge
quickly from the system.
c.
Disconnect the emergency air line from the
semitrailer gladhand. Semitrailer brakes
should promptly set.
d.
Re-connect the emergency air line to the
semitrailer and activate the semitrailer air
supply valve. The semitrailer brakes should
release when the air pressure in the emer-
gency line has built up to 90 psi and stabi-
lized.
3-2
Summary of Contents for 336C
Page 3: ...MODEL 336C CAR CARRIER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO...
Page 8: ......
Page 24: ...3 12 Figure 3 7 Lining Up the Over the Cab Deck Figure 3 8 Loading the Over the Cab Deck...
Page 28: ...3 16 Figure 3 11 Loading the Lower Deck...
Page 32: ...3 20 Figure 3 13 Rear Impact Guard and Antilock Brake System...
Page 40: ...4 6 Figure 4 3 336C Wiring Diagram...
Page 45: ...4 11 Figure 4 7 Checking Axle for Bend Figure 4 8 Examples of Camber...
Page 50: ...4 16 Figure 4 12 Axle and Brake Assembly...
Page 54: ...4 20 Figure 4 14 Outboard Mount Hub and Drum Figure 4 15 Inboard Mount Hub and Drum...
Page 59: ...4 25 Figure 4 19 Mounting Tires and Wheels Figure 4 20 Stud Tightening Sequence...
Page 70: ...NOTES 5 10...
