Rear Crossmember Assembly Replacement

TM 9-2320-363-34-1 · Chapter 8 — Frame and Towing Attachments Maintenance

This task covers: a. Removal b. Cleaning c. Inspection d. Installation

Applicable Configuration:                           General Safety Instructions:
M915A2
                                                                     WARNING
Tools and Special Equipment:                                  Plate weighs 96 lb (44 kg).
Shop Equipment, SC 491095-CL-A31                             Use hoist with lifting capacity
Tool Kit, SC 5180-90-CL-N05                                  of 200 lb (91 kg) to remove
                                                             or install plate. Failure to do
Materials/Parts:                                             so could result in injury to
Nut, Lock (4)                                                personnel.
                                                              Rear cross member weighs
Personnel Required: (2)                                      460 lb (209 kg). Use hoist
References:                                                  with lifting capacity of 600 lb
                                                             (272 kg) to remove or install
TM 9-2320-363-20                                             rear crossmember. Failure to
                                                             do so could result in injury to
Equipment Condition:                                         personnel.
Reference                   Condition Description
TM 9-2320-363-20          Taillight Brackets
                          Removed
TM 9-2320-363-20            Pintle Hook Removed

TM page 8-16

Illustration from TM 9-2320-363-34-1 (PDF page 554)

1. REMOVE FOUR LOCK NUTS (1) AND FOUR CLAMPS (2) AND SET WIRING HARNESS (3) ASIDE. DISCARD LOCK NUTS.

2. REMOVE EIGHT NUTS (4), FOUR WASHERS (5), TOWING BRACKET (6), FOUR SCREWS (7), FOUR WASHERS (8), AND REINFORCEMENT ASSEMBLY (9).

3. REMOVE FIVE NUTS (10), FIVE WASHERS (11), FIVE SCREWS (12), FIVE WASHERS (13), TWO SPACERS (14), AND LEFT SIDE GUSSET (15).

4. REPEAT STEP 3 FOR RIGHT SIDE GUSSET (16).

WARNING Plate weighs 96 lb (44 kg). Use hoist with lifting capacity of 200 lb (91 kg) to remove plate. Failure to do so could result in injury to personnel.

5. ATTACH HOIST AND REMOVE 12 NUTS (17), 12 WASHERS (18), 12 SCREWS (19), 12 WASHERS (20), AND PLATE (21).

TM page 8-17

Illustration from TM 9-2320-363-34-1 (PDF page 555)

6. REMOVE FOUR NUTS (22), FOUR WASHERS (23), FOUR SCREWS (24), FOUR WASHERS (25), AND RIGHT SIDE SUPPORT (26).

7. REPEAT STEP 6 FOR LEFT SIDE SUPPORT (27).

WARNING

Rear crossmember weighs 460 lb (209 kg). Use hoist with lifting capacity of 600 lb (272 kg) to remove rear crossmember. Failure to do so could result in injury to personnel.

ATTACH HOIST AND REMOVE FOUR NUTS (28), FOUR WASHERS (29), FOUR SCREWS (30), FOUR WASHERS (31), AND REAR CROSSMEMBER (32).

TM page 8-18

Illustration from TM 9-2320-363-34-1 (PDF page 556)

Use general cleaning methods to clean all parts (page 2-30).

Inspect all parts for wear or damage.

WARNING Rear crossmember weighs 460 lb (209 kg), Use hoist with lifting capacity of 600 lb (272 kg) to install rear crossmember. Failure to do so could result in injury to personnel.

1. INSTALL REAR CROSSMEMBER (1), FOUR WASHERS (2), FOUR SCREWS (3), FOUR WASHERS (4), AND FOUR NUTS (5).

TM page 8-19

Illustration from TM 9-2320-363-34-1 (PDF page 557)

2. INSTALL RIGHT SIDE SUPPORT (6), FOUR WASHERS (7), FOUR SCREWS (8), FOUR WASHERS (9), AND FOUR NUTS (10).

3. REPEAT STEP 2 FOR LEFT SIDE SUPPORT (11)

WARNING Plate weighs 96 lb (44 kg). Use hoist with lifting capacity of 200 lb (91 kg) to install plate. Failure to do so could result in injury to personnel.

4. ATTACH HOIST AND INSTALL PLATE (12), 12 WASHERS (13), 12 SCREWS (14), 12 WASHERS (15), AND 12 NUTS (16).

5. INSTALL RIGHT SIDE GUSSET (17), TWO SPACERS (18), FIVE WASHERS (19), FIVE SCREWS (20), FIVE WASHERS (21), AND FIVE NUTS (22).

6. REPEAT STEP 5 FOR LEFT SIDE GUSSET (23).

7. INSTALL REINFORCEMENT ASSEMBLY (24), FOUR WASHERS (25), FOUR SCREWS (26), TOWING BRACKET (27), FOUR WASHERS (28), AND EIGHT NUTS (29).

8. MOVE WIRING HARNESS (30) INTO POSITION AND INSTALL FOUR CLAMPS (31) AND FOUR NEW LOCK NUTS (32).

NOTE Follow-on Maintenance: Install pintle hook (TM 9-2320-363-20). Install taillight brackets (TM 9-2320-363-20).

TM page 8-20 Change 1

This task covers:      a. Removal    b. Cleaning    c. Inspection d. Installation

Applicable Configuration:                              Equipment Condition (Cont):

All except M915A2                                      Reference               Condition Description

Tools and Special Equipment:                           TM 9-2320-363-20        Pintle Hook Removed

Shop Equipment, SC 4910-95-CL-A31                      TM 9-2320-363-20        Grate Removed
Tool Kit, SC 5180-90-CL-N05                                                    (M916A1 and M916A2)

Materials/Parts:                                       TM 9-2320-363-20        Rear Tiedown and Roller
                                                                               Removed (M916A1 and
Nut, Lock (37) (M916A1 and M916A2)                                             M916A2)

Nut, Lock (43) (M917A1 and M917A1 w/MCS)               TM 9-2320-363-20        Rear Tiedown Removed
                                                                               (M917A1 and M917A1
Personnel Required: (2)                                                        w/MCS)

References:                                            General Safety Instructions:

TM 9-2320-363-20
                                                                           WARNING
Equipment Condition:                                     Rear crossmember weighs 460 lb (209 kg).
                                                         Use hoist with lifting capacity of 600 lb (272 kg)
Reference              Condition Description             to remove or install rear crossmember. Failure
                                                         to do so could result in injury to personnel.
TM 9-2320-363-20       Taillight Brackets Removed

PDF page 559

1. REMOVE THREE LOCK NUTS (1) AND THREE CLAMPS (2) AND MOVE WIRE/HOSE HARNESS (3) ASIDE. DISCARD LOCK NUTS.

2. REMOVE FIVE LOCK NUTS (4), FIVE WASHERS (5), FIVE SCREWS (6), FIVE WASHERS (7), LEFT SIDE GUSSET (8), AND SPACER (9). DISCARD LOCK NUTS.

3. REPEAT STEP 2 FOR RIGHT SIDE GUSSET (10).

CAUTION Rear crossmember weighs 460 lb (209 kg). Use hoist with lifting capacity of 600 lb (209 kg) to remove rear crossmember. Failure to do so could result in injury to personnel.

4. ATTACH HOIST AND REMOVE FOUR LOCK NUTS (11), FOUR WASHERS (12), FOUR SCREWS (13), FOUR WASHERS (14), REAR CROSSMEMBER (15), AND TWO SPACERS (16). DISCARD LOCK NUTS

Change 1 8-21

PDF page 560

5. REMOVE EIGHT LOCK NUTS (17), FOUR WASHERS (18), TOWING BRACKET (19), FOUR SCREWS (20), FOUR WASHERS (21), AND REINFORCEMENT ASSEMBLY (22). DISCARD LOCK NUTS.

6. REMOVE 12 LOCK NUTS (23), 12 WASHERS (24), 12 SCREWS (25), 12 WASHERS (26), PLATE (27), AND SIDE PLATE (28). DISCARD LOCK NUTS.

8-22 Change 1

TM page Change 1 8-23

Illustration from TM 9-2320-363-34-1 (PDF page 561)

Use general cleaning methods to clean all parts (page 2-30).

Inspect all parts for wear or damage.

1. INSTALL SIDE PLATE (1), PLATE (2), 12 WASHERS (3), 12 SCREWS (4), 12 WASHERS (5), AND 12 NEW LOCK NUTS (6).

2. INSTALL REINFORCEMENT ASSEMBLY (7), FOUR WASHERS (8), FOUR SCREWS (9), TOWING BRACKET (10), FOUR WASHERS (11), AND EIGHT NEW LOCK NUTS (12).

TM page 8-24 Change 1

Illustration from TM 9-2320-363-34-1 (PDF page 562)

WARNING Rear crossmember weighs 460 lb (209 kg). Use hoist with lifting capacity of 600 (272 kg) to install rear crossmember. Failure to do so could result in injury to personnel.

3. ATTACH HOIST AND INSTALL TWO SPACERS (13), REAR CROSSMEMBER (14), FOUR WASHERS (15), FOUR SCREWS (16), FOUR WASHERS (17), AND FOUR NEW LOCK NUTS (18).

4. INSTALL SPACER (19), LEFT SIDE GUSSET (20), FIVE WASHERS (21), FIVE SCREWS (22), FIVE WASHERS (23), AND FIVE NEW LOCK NUTS (24).

5. REPEAT STEP 4 FOR RIGHT SIDE GUSSET (25).

6. MOVE WIRE/HOSE HARNESS (26) INTO POSITION AND INSTALL THREE CLAMPS (27) AND THREE NEW LOCK NUTS (28).

NOTE Follow-on Maintenance:

Install rear tiedown (TM 9-2320-363-20)(M917A1 and M917A1 w/MCS). Install rear tiedown and roller (TM 9-2320-363-20) (M916A1 and M916A2). Install grate (TM 9-2320-363-20)(M916A1 and M916A2). Install pintle hook (TM 9-2320-363-20). Install taillight brackets (TM 9-2320-363-20).

TM page 8-25

Illustration from TM 9-2320-363-34-1 (PDF page 563)