3-8 UNCOUPLING TOWING VEHICLE FROM SEMITRAILER
3-8.1
Park the semitrailer according to instruc-
tions in
Section 3-7.
3-8.2
Lower the landing gear:
WARNING
WITH PIN DROP OR HYDRAULIC
LANDING GEAR BE SURE TO SECURE
EACH LEG WITH PIN BEFORE LEAV-
ING SEMITRAILER UNATTENDED.
a.
Lower the pin drop landing gear to the
ground. Hydraulically raise front end of semi-
trailer until next hole in landing gear is avail-
able. Pin through both inner and outer legs of
landing gear. Hydraulically lower semitrailer
onto legs.
CAUTION
ALWAYS GRIP CRANK HANDLE SE-
CURELY WITH BOTH HANDS. NEVER
SHIFT LANDING GEAR UNDER LOAD.
NEVER LEAVE THE GEARS IN NEU-
TRAL OR THE CRANK UNSECURED.
b.
For optional crank landing gear, turn crank
handle clockwise to extend. Using high gear,
lower the landing gear until the pads make
contact with the ground. To reduce the load
on the fifth wheel, shift to low gear and crank
an additional four to eight turns. Leave the
landing gear engaged in low gear.
c.
For hydraulic landing gear, extend landing
gear with lever on Engine Control Panel until
the full weight of the trailer is on the landing
gear. Secure each leg by inserting a pin.
3-8.3
Disconnect the emergency and service
air lines and attach them to the tractor glad-
hand holders. If present, install dummy glad-
hands on trailer couplings.
3-8.4
Disconnect the 7-pole cable and hy-
draulic lines from the semitrailer and store
with the tractor.
3-8.5
Pull the tractor fifth wheel plate latch re-
lease lever.
3-8.6
Attempt to pull the tractor forward. If the
tractor uncouples, verify all service lines are
disconnected and semitrailer wheels are
chocked. If tractor does not disconnect, re-
peat
3-8.7
Pull the tractor away from the semi-
trailer.
DANGER
ALWAYS CHECK BEHIND AND UNDER
THE TRUCK AND SEMITRAILER FOR
PERSONS OR OBJECTS BEFORE
MOVING. FAILURE TO CHECK CAN
LEAD TO SERIOUS PERSONAL IN-
JURY OR DEATH TO OTHERS, OR
DAMAGE TO PROPERTY.
3-9 TRAILER TILT LEVER
The
TRAILER TILT
lever is located on the
driver’s side of the upper deck.
(See Figures 3-1
and 3-4)
It is the middle lever and has three posi-
tions:
UP
In this position, the front end of the
semitrailer rises to the load position.
CENTER
This is the neutral position. The
semitrailer stays in its current posi-
tion.
DOWN
In this position, the front end of the
semitrailer lowers to the transport po-
sition.
3-9
Summary of Contents for 600A Series
Page 8: ......
Page 12: ......
Page 14: ...3 2 Figure 3 1 Front Trailer Terminology Figure 3 2 Rear Trailer Terminology...
Page 18: ...3 6 Figure 3 4 Hydraulic Controls...
Page 26: ...3 14 Figure 3 6 Steps for Loading and Unloading...
Page 32: ...3 20 Figure 3 9 Dock Leveler Operation...
Page 38: ...3 26 Figure 3 13 Rear Impact Guard and Antilock Brake System...
Page 42: ...4 2 Figure 4 1 Lubrication Points...
Page 48: ...4 8 Figure 4 3 600A Wiring Diagram...
Page 49: ...4 9 Figure 4 4 Remote Wiring Diagram...
Page 52: ...4 12 Figure 4 5 Tandem Axle Air Ride Suspension System...
Page 54: ...4 14 Figure 4 7 Triple Axle Air Ride Suspension System...
Page 57: ...4 17 Figure 4 9 Checking Axle Alignment DRIVER SIDE CURBSIDE Figure 4 10 Examples of Camber...
Page 61: ...4 21 Figure 4 13 Axle and Brake Assembly...
Page 66: ...4 26 Figure 4 15 Outboard Mount Hub and Drum Figure 4 16 Inboard Mount Hub and Drum...
Page 73: ...4 33 Figure 4 22 Dock Leveler Leg Assembly...
Page 75: ...4 35 Figure 4 23 Crank Landing Gear Assembly...
Page 86: ...NOTES 5 10...