Service Information
14
FIFTH WHEEL REPLACEMENT
Required Tools:
Pliers String or Bungee Cord 3/16” Allen Wrench
(2) 9/16” Box End Wrenches
Procedure:
1. Apply the stretcher brakes.
2. Pump the litter up to full height.
3. Lift and support the base hood using string or bungee cord.
4. Using pliers, remove the cotter pin from the end of the fifth wheel pivot rod and remove the two washers.
5. Pull up on the fifth wheel arm and pull down on the tension spring to release the pressure on the arm.
6. Using a 3/16” Allen wrench, remove the hex Allen bolt from the center of the pivot rod and pull the pivot
rod out of the wheel arm.
7. Reverse the above steps to install a new fifth wheel assembly.
NOTE
To replace the wheel only, use two 9/16” box end wrenches to remove the bolt and nut holding it to the wheel
arm.
BASE SIDE CONTROL PEDAL LINKAGE ADJUSTMENT
Required Tools:
3/8” Wrench 5/32” Hex Allen Wrench 7/16” Wrench
Bungee Cords
Adjustment Procedure:
1. Place 150−200 pounds on the litter and pump the litter up to full height.
2. Lift the base hood, separating the hood from the base frame. Using the bungee cords, support the base
hood.
3. Using a 3/8” wrench and a 5/32” hex Allen wrench, loosen the appropriate pedal linkage adjustment nut
until the jack stops ”drifting”. Raise the litter to full up.
4. Tighten the pedal linkage adjustment nut until the jack begins to slowly descend.
5. Using a 7/16” wrench, back the pedal linkage adjustment nut out four full turns. Raise the litter to full up.
6. Loosen the pedal linkage adjustment nut and ensure no drift occurs. If the jack drifts, repeat procedure.
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