TM-5-3805-254-14-P-2

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)

JUNE 1980

TM-5-3805-254-14-P-2 - Page 367 of 894

TRUCK SERVICE MANUAL

Service Tools (Or Equivalent) Required

Service

Tool

Tool Number

Name

ST-691

Mandrel and Block

ST-863

Mandrel

ST- 1053

Driver

ST-1182

Alignment Tool (80 deg.

Tilt engine)

Standard Tools - Obtain Locally

Small Bore Gauge

Micrometers (1 to 2 inch)

Radius Gauge (1/4 inch

[6.35 mm])

ROCKER LEVER HOUSING

DISASSEMBLY AND INSPECTION

1. Tag rocker levers for position, as removed and

remove adjusting screws and nuts from all levers.

2. Remove setscrew or spray nozzle and jam nut

(80 deg. tilt engines) positioning rocker lever shaft in

housing.

3. Drive a sharp pointed punch through plug at end

of rocker shaft.

Pry out concave type plug or press

through housing if cup type.

Use a flat or drift punch to

drive or press shaft through housing.

4. Locate shaft in V-block, not a vise and remove

plugs.

5. Visually inspect all capscrew holes for damaged

threads and inspect all levers, housings and covers for

cracks, chips or breaks

6. Inspect entrance of shaft bore for sharp edges,

nicks or burrs when cup plugs are used, entrance of bore

should have a slight radius. Sharp edges can be

removed by using 240 grit aluminum oxide paper over a

split rod, rotating in an electric drill.

7. Check breather vent hole (1, Fig.

3-2) and

rocker lever oil drilling (2) to make sure they are free of

dirt or other deposits.

8.

Check rocker lever shaft bore of housing

inside diameter.

Dimensions should be 1.1238 to 1.1246

inch [28.545 to 28.565 mm] .

If shaft bore does not meet

these dimensions. discard housing and replace.

See

Parts Catalog for correct part number.