Kalmar Ottawa Operator's Manual - Basic Trailer
32
marked on the boom operating lever, low-
ers the boom and fifth wheel. To increase
the rate of travel of the boom, the engine
may be idled higher while the vehicle is in
NEUTRAL ONLY. Standard configuration
of the boom allows both power up and
down capability.
FIFTH WHEEL UNLATCH
CONTROL VALVE
The Kalmar tractor comes standard with
an air operated fifth wheel unlatch cylin-
der. The cylinder is operated by a “push
type” valve located on the right hand con-
sole behind the shifter (Page 21). Pressing
the fifth wheel unlatch valve opens the
king pin jaws in the fifth wheel. After the
jaws are opened, they remain open until
the fifth wheel is connected to a trailer
kingpin.
NOTE - When pulling out from under a trailer,
the control must be depressed and held until
the fifth wheel is clear of the trailer king pin.
BASIC TRAILER
SPOTTING STEPS
NOTE - The following information is for
reference only. Kalmar Industries Corp. highly
recommends using the following information
to create procedures that match your particular
application and vehicle. It is the operator’s
responsibility to ensure that proper trailer
moving procedures are used for a particular
situation and vehicle application.
1. Maintain optimum tractor air pressure
(120 PSI). The fifth wheel should be in
the FULL DOWN position. Be absolutely
positive that the fifth wheel jaws are in
the UNLATCH position by depressing the
unlatch control valve located to the right
of the shifter. (See page 21).
2. Line the tractor up to the front of the
trailer by centering the fifth wheel to the
center line of the trailer. Make sure that
the tail of the fifth wheel is BELOW the
trailer skid ramp.
3. Back the tractor UNDER the trailer until
the ENTIRE fifth wheel DISAPPEARS UN-
DER the front edge of the trailer floor/skid
plate.
4. With your foot firmly on the brake
treadle and the tractor shift lever in
NEUTRAL, move the boom control lever
to the UP position and raise the trailer
until the trailer support is JUST OFF THE
GROUND. DO NOT raise the trailer any
more than a few inches to provide clear-
ance between the trailer landing gear and
the ground at this step.
5. After you have obtained adequate
ground clearance at the trailer landing
gear, place the shift selector in REVERSE,
release your foot from the brake treadle
and back FIRMLY into the kingpin jaws
until you feel full engagement. REMEM-
BER, the latching jaws in the fifth wheel
MUST BE FULLY IN THE UNLATCH
POSITION BEFORE attempting kingpin
engagement.
6. Place the transmission shift lever into
a forward drive gear and give a “TUG” at
the kingpin to ensure positive lock of the
jaws around the kingpin. BE PREPARED to
stop if the fifth wheel jaws have not fully
latched to avoid pulling out from under
the trailer and dropping it.
7. Place the shift lever in the NEUTRAL
position and raise the boom using the
boom control lever. Raise the fifth wheel
to the necessary height to maintain ground
clearance while towing the trailer to the
new location. Be aware of potential over-
head damage to a trailer if it is
Operation