TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992
TM-9-2815-205-34

  TM-9-2815-205-34 - Page 32 of 596

TM 9-2815-205-34
(b) See TM 9-214 for maintenance of bearings.
(4) Studs.
(a) Replace all bent or loose studs or studs showing evidence of stretching.
(b) Repair minor thread damage with a thread chaser.
(c) Remove and replace studs as outlined in (d) and (e) below.
(d) Removal.
1. Using stud extractor, back studs out slowly to avoid heating and possible seizure.
2. When studs are broken off too short to use stud extractor, drill stud and extract with an
easy out remover.
3. Short studs may also be removed by welding a bar or nut to stud and removing with a
wrench.
(e) Replacement.
1. Only standard studs are supplied for replacement in steel or cast iron castings.
2. Unless threads in casting are damaged beyond repair, use standard studs.
3. If threaded openings are damaged and retapping will not clean up threads, drill and tap
opening in casting and install a threaded insert.
NOT E
Studs may have a coarse thread on one end and a fine thread on the other end. The
coarse threads on both ends are used in particular applications and normally the short
coarse threaded end is in the aluminum casting. All replacement studs have a special
coating and must have a small amount of mica-base antiseize compound (App C, Item
(4), MIL-A-907) applied on the threads before the studs are installed in casting. Thread
replacement stud into opening slowly to prevent overheating.
(5) Gears.
(a) Replace all gears that are cracked, worn, pitted, galled or do not conform to tolerances
specified in App G.
(b) Remove sharp fins and burrs from gear teeth with crocus cloth dipped in cleaning solvent.
(6) Bushing and Bushing Type Bearings. When bushings and bushing type bearings are damaged
or worn beyond specified limits (App G), general associated parts must also be replaced.
Reference to (a) and (b) below will be made in Chapter 4 for the particular part in which
replacement of bushings and bushing type bearings is required.
(a) Removal. Remove bushing and bushing type bearings by pressing out with a suitable arbor
press or with special tools provided. (Refer to App B for listing of special tools and
equipment).
2-5


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