TM-9-2330-335-14-P

SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)

SEPTEMBER 2008

TM-9-2330-335-14-P - Page 524 of 640

TM 9-2330-335-14&P

0090-2

0090

KINGPIN MAINTENANCE - CONTINUED

CAUTION

If a lube plate is used in your operation, make sure to check the kingpin length. The kingpin must

be sized to compensate for the thickness of the lube plate. Otherwise, the kingpin will be too short.

If the kingpin length is improper, the king pin should be replaced. For more information, see

Holland Service Bulletin XL-SB4

.

3.

Inspect the Kingpin for Proper Length.

Using a Holland Kingpin Gage, check the length as shown in Figure 2.

Figure 2.

Proper Length.

090

4.

Inspect the Kingpin for Wear.

Using a Holland Kingpin Gage, check the wear on both the 2 in. and 2.88 in. (5.1 cm and

7.3 cm) diameters. Wear of 0.13 in. (3.3 mm) is indicated if the appropriate diameter enters the gage slot. Replace the

kingpin if the gage slides into the appropriate gage slot (see Figure 3).

Figure 3.

Wear.

090

5.

Check the Kingpin Mounting.

In addition to being a safety hazard, a loose mounting will cause excessive chucking and

rapid lock wear. Reinstall or replace any kingpin which is not securely mounted.

6.

Check the Kingpin for Damage.

Inspect the kingpin for any nicks, gouges, deformation or cracks which may interfere or

affect the safe use of the kingpin. Replace the kingpin if any damage is noted.

447-0090

447-0091