IMPORTANT: YOU ARE RESPONSIBLE FOR SAFE HITCHING AND UNHITCHING OPERATIONS. DO NOT RELY ON
OTHERS TO PERFORM YOUR DUTIES. YOU MUST PERSONALLY MAKE SURE THE FOLLOWING
STEPS ARE PERFORMED IN THE FOLLOWING ORDER!
WARNING:
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN DEATH OR SERIOUS INJURY.
BEFORE EACH TRIP:
HITCHING PROCEDURE:
Fig. 8
CORRECT
Skid Plate Ramp (C)
Hitch Skid Plate (B)
Bottom of Pin Box (A)
Bottom of Pin
Box Above
Hitch Skid Plate
Fig. 9
WRONG
WARNING:
Failure to follow this instruction may result in king pin being too high and coming to rest on top of closed jaws or
not completely inside jaws. (See Fig. 9). This could result in trailer separating from hitch. Trailer separation may
result in death or serious injury if anyone is under the trailer or between truck and trailer when separation occurs.
Bottom of Pin Box (A) 1/2 To 1 Inch
Below Hitch Skid Plate (B)
1.
A plastic lube plate is supplied with the R20 (see figure on cover of Manual). Do not use automotive type chassis grease to
provide the lubricated surface.
2.
DO NOT USE A ROUND LUBE PLATE WITH THE R20. A PLASTIC LUBE PLATE IS STANDARD EQUIPMENT ON THE
R20.
3.
Before each trip or maneuver, operate the handle and check that the jaws open and close freely.
4.
See that all hitch pins (#16 on Fig.20) are in place and the spring retaining pins (#17 on Fig.20) are installed.
1.
Place blocks (sometimes called “chocks”) firmly against front and rear if each trailer wheel to prevent any possible forward or
rearward motion. DO NOT REMOVE BLOCKS UNTIL EACH OF THE FOLLOWING STEPS AND THE PULL TEST HAVE
BEEN COMPLETED. Lower tailgate if necessary.
2.
Using trailer jacks, adjust trailer height following the directions in the trailer manual so that bottom of trailer pin (“A” in Fig. 6) is
½ to 1 inch below skid plate (See “B” in Fig. 8). During the hitching maneuver, the bottom of the trailer pin box should come in
contact with the skid plate ramp (“C” in Fig. 8).
