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OPERATING INSTRUCTIONS FOR LOCK TESTER PART # SK

1. The right to alter specifications is reserved 1770 Hayes Rd P O Box 327 Grand Haven MI 49417 www jostinternational com Ph 616 846 7700 800 253 5105 Fax 616 846 0310 Email sales jostinternational com LT JSK37 08_A INTERNATIONAL 1 ENGAGE LOCK TESTER A Using the lift handle place the lock tester on the fifth wheel with the kingpin in line with the throat See figure 1 B Engage the hook over the front skirt of the fifth wheel by depressing and rotating the spring loaded tee handle See figure 2 C Lock the fifth wheel by swinging the lock tester handle forward until the fifth wheel release handle moves to the closed position See figure 3 OPERATING INSTRUCTIONS FOR LOCK TESTER PART SK 76000 00 FIGURE 1 FIGURE 3 FIGURE 2 Press Down And Turn Hook Under Front Skirt Pull Handle The right to alter specifications is reserved 1770 Hayes Rd P O Box 327 Grand Haven MI 49417 www jostinternational com Ph 616 846 7700 800 253 5105 Fax 616 846 0310 Email sales jostinternational com LT JSK37 08_A INTERNATIONAL 2 CHECK ADJUSTMENT Lock and unlock several times using the tester A THE LOCK IS PROPERLY ADJUSTED IF The wheel locks and unlocks easily each time and the lock tester rotates freely B THE LOCK IS TOO LOOSE IF You feel fore aft play when pulling and pushing on the lock tester handle see figure 4 C THE LOCK IS TOO TIGHT IF The lock tester does not rotate freely whe
2. n attempting to rotate it in the lock See figure 5 3 CORRECT IMPROPER ADJUSTMENT A IF IT IS TOO TIGHT loosen the jam nut turn the adjustment screw clockwise one full turn and reset the jam nut Then lock and unlock several times repeat if necessary B IF IT IS TOO LOOSE loosen the jam nut turn the adjustment screw counterclockwise one full turn and reset the jam nut Then lock and unlock several times repeat if necessary CLOCKWISE IF TOO TIGHT COUNTER CLOCKWISE IF TOO LOOSE TURN ADJUSTMENT SCREW FIGURE 5 FIGURE 4 Pull amp Push Handle Look for movement of kingpin in lock Disengage Hook Rotate Lock Tester

OPERATING INSTRUCTIONS FOR LOCK TESTER PART # SK

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