TB 9-2320-279-13&P-4
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TEST 3 - Does fifth wheel unlock when disconnecting trailer?
1. Ensure vehicle is returned to normal operating condition.
2. Connect semitrailer to vehicle. (WP 0013)
TYPICAL
TRAILER
FIFTH WHEEL
Figure 3.
3. Attempt to disconnect semitrailer from vehicle. (WP 0013)
CONDITION/INDICATION
Does fifth wheel unlock when disconnecting trailer?
DECISION
No - Replace fifth wheel. (WP 0052)Test 4 - Does fifth wheel unlock when disconnecting trailer?
Yes - Problem corrected.
TEST 4 - Does fifth wheel unlock when disconnecting trailer?
1. Ensure vehicle is returned to normal operating condition.
2. Connect semitrailer to vehicle. (WP 0013)