Flex Plate Replacement and Repair

TM 9-2320-363-34-1 · Chapter 3 — Power Package Maintenance

This task covers: a. Removal b. Disassembly c. Cleaning d. Inspection e. Repair f. Assembly

                  g. Installation

Tools and Special Equipment:                    Equipment Condition:
Shop Equipment, SC 4910-95-CL-A31               Reference              Condltlon Description
Tool Kit, SC 5180-90-CL-N05
Guide Stud Set, J36235                          Page 3-234             Transmission Removed
Materials/Parts:
Plate, Scuff            P/N 5100532
International          Appendix B, Item 29
Compound No. 2

TM page 3-155

Illustration from TM 9-2320-363-34-1 (PDF page 231)

NOTE

Use 3/4-in. extension and hinged handle bar to prevent crankshaft rotation when removing two bolts.

1. INSERT 3/4-lN. EXTENSION (1), 4-6 IN. LONG, INTO SQUARE OPENING IN CENTER OF CRANKSHAFT PULLEY AND HOLD EXTENSION (1) WITH HINGED HANDLE BAR (2).

NOTE If flex plate assembly is to be repaired, go to step 2. If flex plate assembly is not to be repaired, go to step 3.

2. LOOSEN 12 BOLTS (3).

3. REMOVE TWO BOLTS (4) AT 3 AND 9 O’CLOCK POSITIONS AND INSTALL TWO GUIDE STUDS (5).

4. REMOVE REMAINING 10 BOLTS (4).

5. REMOVE AND DISCARD SCUFF PLATE (6).

TM page 3-156

Illustration from TM 9-2320-363-34-1 (PDF page 232)

REMOVE FLEX PLATE ASSEMBLY (7) FROM TWO GUIDE STUDS (5).

REMOVE 12 BOLTS (1), FLEX PLATE (2), 4 DISKS (3), AND DISK ASSEMBLY (4) FROM COUPLING (5).

TM page 3-157

Illustration from TM 9-2320-363-34-1 (PDF page 233)

1. MAKE SURE ALL SURFACES OF COUPLING, DISK ASSEMBLY, FOUR DISKS, AND FLEX PLATE ARE CLEAN AND FREE FROM ANY FOREIGN MATERIAL.

2. USE GENERAL CLEANING METHODS TO CLEAN ALL PARTS (PAGE 2-30).

1. INSPECT PARTS FOR RUST, CRACKS, OR DAMAGE. IF ANY OF THESE CONDITIONS ARE PRESENT, REPLACE PARTS.

2. INSPECT ALL PARTS FOR WEAR OR DAMAGE.

Use general repair methodsto repair damaged parts (page 2-33).

1. PLACE COUPLING (l), RECESSED SIDE DOWN, ON BENCH.

2. INSTALL DISK ASSEMBLY (2) ON COUPLING (1) WITH REINFORCEMENT SIDE DOWN.

3. INSTALL FOUR DISKS (3) ONTOPOF DISK ASSEMBLY (2).

TM page 3-158

Illustration from TM 9-2320-363-34-1 (PDF page 234)

4. INSTALL FLEX PLATE (4) ON TOP OF FOUR DISKS (3).

5. ALINE BOLT HOLES AND INSTALL 12 BOLTS (5) HAND-TIGHT IN COUPLING (1).

TM page 3-159

Illustration from TM 9-2320-363-34-1 (PDF page 235)

NOTE

Make sure mating surfaces of crankshaft butt and flex plate assembly are clean and dry.

1. INSTALL FLEX PLATE ASSEMBLY (1) ON TWO GUIDE STUDS (2) AND SLIDE FORWARD AGAINST CRANKSHAFT (3) BUTT.

2. INSTALL NEW SCUFF PLATE (4) ON TWO GUIDE STUDS (2) AND SLIDE FORWARD AGAINST FLEX PLATE ASSEMBLY (1).

NOTE Do not apply international Compound No. 2 on underside of bolt heads.

3. APPLY INTERNATIONAL COMPOUND NO. 2 ON THREADSOF BOLTS (5).

4. INSTALL 10 BOLTS (5) THRU SCUFF PLATE (4) AND FLEX PLATE ASSEMBLY (l) AND TIGHTEN TO 50 LB-FT (63 N.m).

5. REMOVE TWO GUIDE STUDS (2) AND INSTALL REMAINING TWO BOLTS (5). TIGHTEN BOLTS TO 50 LB-FT (63 N.m).

TM page 3-160

Illustration from TM 9-2320-363-34-1 (PDF page 236)

Use 3/4-in. extension and hinged handle bar to prevent crankshaft rotation when tightening bolts.

6. INSERT 3/4-lN. EXTENSION (6), 4-6 IN. LONG, INTO SQUARE OPENING IN CENTER OF CRANKSHAFT PULLEY AND HOLD EXTENSION (6) WITH HINGED HANDLE BAR (7).

TM page 3-161

Illustration from TM 9-2320-363-34-1 (PDF page 237)

7. TIGHTEN 12 INNER BOLTS IN CRISSCROSS PATTERN TO 180-190 LB-FT (244-257 N.m).

8. TIGHTEN 12 OUTER BOLTS IN CRISSCROSS PATTERN TO 95-115 LB-FT (130-156 N.m).

NOTE Follow-on Maintenance:

Install transmission (page 3-234).

TM page 3-162