Landoll 600C Series, Operator'S Manual

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3-19.3 The Model 610C triple axle semitrailer,
with 10’-1" spread between front and rear ax-
les is equipped with additional height control
valves to adjust the suspension during load-
ing and unloading operations. When moving
the undercarriage from transport to load posi-
tion, the undercarriage is tilted with the cen-
ter axle air bags inflated and rear axle sus-
pension air bags deflated to achieve low load
angle. This function positions the center axle
for added undercarriage support to the semi-
trailer and payload when tilted for loading/un-
loading.
CAUTION
INSURE SUSPENSION AIR BAGS ARE
INFLATED ON ALL AXLES WHEN MOV-
ING UNDERCARRIAGE FROM LOAD
TO TRANSPORT POSITION. FAILURE
TO DO SO CAN CAUSE EXCESSIVE
TIRE WEAR.
3-19.4 Different tractor fifth wheel heights may
affect proper operation of the triple axle sus-
pension air system. In the event front and
rear axle suspension air bags are not inflated
or feel soft by the time the undercarriage has
reached transport position, adjustment to the
front and rear axle control valve linkage may
be required.
(See Section 4-6.3 j.).
3-20 BULKHEAD (OPTION)
3-20.1 Optional bulkheads may come with or
without chain racks. To remove a bulkhead,
disconnect the electrical harness (if work
lights are present), remove retaining pins
holding the bulkhead into the pockets on the
semitrailer front and bolts and nuts attaching
the bulkhead extensions and supports to the
deck, and lift the bulkhead off
(See Figure
3-12).
DANGER
TO AVOID SERIOUS INJURY, ALL RE-
MOVABLE ATTACHMENTS MUST BE
FIRMLY ATTACHED WITH FASTENERS
PROVIDED AT ALL TIMES.
3-24
Figure 3-12 Bulkhead