INSTALLATION INSTRUCTIONS For JSK 37043/37070 Fifth Wheel Top Plates

JOST Australia Narrow Top Plate - Test

1. INSTALL JOST MODEL JSK 37043/37070 TOPPLATE:
   1. Remove the hex head cap screws (figure 1, item 1) and locking tabs (item 2).
   2. Remove the bracket pins (item 3).
   3. Inspect the top of the bracket cap and grind off any high or rough spots (see figure 2).
   4. Apply grease to the top surface of the pivot bracket collars (item 4)
   5. as shown in figure 3.
   6. Install pivot collars (item 4) into the pivot pockets of the fifth wheel topplate
      
2. INSTALL MODEL JSK 37043/37070 TOPPLATE (CONT.):
   1. Using a suitable lifting device, lower the new Jost topplate onto the mounting bracket.
   2. Install the pivot pins (item 3) aligning the flange with the threaded holes in the topplate casting.
   3. Align a locking tab (item 2) with each pivot pin and install the hex head
      cap screws (item 1) thru the locking tabs, the pivot pin flange and into
      the topplate casting ears.
   4. Bend the locking tabs over each cap screw as shown in figure 4. 
      
3.  INSPECTION AND LUBRICATION PRIOR TO USE:
   1. Review the installation. Be certain that all steps were completed properly.
   2. Check the fifth wheel locking mechanism using a lock tester. It must lock and
      unlock as described in the Maintenance Procedures provided with your fifth
      wheel. For additional copies of the Maintenance Procedures contact Jost.
   3. Apply grease to the top of the fifth wheel (where it contacts the trailer plate)