Disassembly - TM-9-2815-213-340032

*TM 9-2815-213-34

(4) Lubricate machined packing ring bore of

twisted seal rings, cocked crevice seal or sleeve to block

block with light coat of OE-10 lubricant.

contact which could cause distortion of sleeve. If no

(5) Start sleeve into bore by hand.

apparent cause is evident replace sleeve.

(6) Use a sleeve driver (31, fig. B-28) place

sleeve in block.

(8) Install sleeve and check sleeve protrusion

(7) Using a dial bore gage check sleeve

using gage block (24, fig. B-28) to determine if

against limits specified in repair and rebuild standards

protrusion is uniform.

(para. 3-174). If specified limits are exceeded remove

sleeve and check for possible

Section III.

3-7. Disassembly

a. Attach a gear puller to shaft gear.

NOTE

b. Using a heating torch head gear hub 300 - 400

degrees Fahrenheit.

Undersize grinding shall be to a limit of

c. Apply 75 to 100 foot pounds torque on puller

0.010-inch. If one bearing or journal

screw and remove gear and key.

requires grinding,

all bearings or

d. Remove all pipe plugs.

journals shall be ground to the same

undersize dimension.

3-8. Cleaning

Clean crankshaft and gear in accordance with paragraph

b. Regrinding Rear Main Bearing Thrust Flange.

2-5.

Flange shall be reground to restore flatness to accept

3-9. Inspection

either standard or oversize thrust rings.

a. Visually inspect shaft journals for the lowing

defects. Replace shaft if all or any defect is present:

NOTE

(1) Deep nicks, grooves, scratches, evidence

of galling or scuffing.

If total wear and regrinding does not

(2) Burned areas, if color is a very do blue.

exceed 0.005-inch,

standard thrust

(3) Heavy discoloration throughout shaft from

rings may be used. Maximum regrinding

over-all heating.

b. Measure all bearing surfaces with a micrometer

for oversize rings shall not exceed

0.005-inch undersize.

(fig. 3-5). Check against wear limits specified in repair

and rebuild standards (para 3-174).

c. Check shaft for out-of-round condition. Shaft

c. Minor Defects. Minor defects on journal and

must be reground or replaced if main beings or journals

bearing surfaces may be repaired by polishing with a

are worn out-of-round more than 0.002.inch.

crocus cloth dipped in dry-cleaning solvent or mineral

d. Visually inspect thrust flange at rear main

spirits paint thinner.

d. Repair Inspection. Shaft must be inspected by

bearing. If surface is scored or scratched, flange must

the electro magna-flux method for fractures after

be reground.

e. Measure flange wear (P, fig. 3-5).

refinishing. If any evidence of cracks are noted, replace

shaft.

3-11. Assembly

NOTE

a. Install all pipe plugs using sealing tape or lead

sealer to prevent leakage. Refer to para-graph 3-186,

If flange wear does not exceed 0.003-

for pipe plug torque specifications.

inch at any one point, flange condition is

b. Install key in shaft keyway.

acceptable. If wear is 0.003-inch or

c. Oil shaft with OE-10 lubricant.

more,

flange must be reground to

restore flatness.

CAUTION

3-1 0. Repair

When using heating torch keep flame

a. Regrinding Main Bearing and Rod Journal If out-

away from direct contact with gear teeth.

of-round or worn beyond repair and rebuild standards

d. Heat gear in oven, or with heating torch, to

specified limits, (para. 3-175) main bearing and rod

approximately 400 degrees Fahrenheit.

journals may be ground undersize.

e. Using rubber mallet, or brass head driver, drive

gear on shaft.

3-3