TB 9-2320-279-13&P-4
OPERATOR MAINTENANCE
CONNECT/DISCONNECT M870/M870A1 SEMITRAILER
INITIAL SETUP:
Not Applicable
CONNECT M870/M870A1 SEMITRAILER
WARNING
This procedure should be performed on level ground. Failure to comply may result in injury or
death to personnel.
Operator must always be stationed in driver's seat any time the tractor vehicle is in N (neutral)
with wheel chocks removed. Failure to comply may result in injury or death to personnel.
CAUTION
Lockouts must be positioned as identified in Table 1. Failure to comply may result in damage
to equipment.
Always refer to semitrailer specific operator's manual (TM 5-2330-378-14&P) prior to coupling.
Failure to comply may result in damage to equipment.
NOTE
This procedure is a two soldier task.
Leave tractor vehicle running during procedure for heavy-duty winch operation.
Tractor vehicle is equipped with fifth wheel to accept 3.5 in. (89 mm) kingpin.
If fifth wheel lockout assemblies are not positioned correctly, complete Steps (1) through (3).
If fifth wheel lockout assemblies are positioned correctly, skip to Step (4).
1. Refer to Table 1. to determine whether lockout assembly lockrings are in correct position.
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