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Page Title:
Table 4-4. Troubleshooting for Blasting Machines |
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 TM 9-1375-213-34&P
NOTE
2. Clean, lint-free cloths.
3. Lubricating oil.
No. 00 fine sandpaper may be substi-
tuted for flint abrasive paper. Emery
4. General purpose grease.
cloth, however must not be used.
5. A sheet of flint abrasive
paper 2/0.
Table 4-4. Troubleshooting for Blasting Machines
Symptom
Probable cause
Corrective action
10-CAP GENERATOR-TYPE MACHINES
Fails to operate when
Check for shorted, broken or loose
a. No electrical output
actuated.
internal wires and repair.
Clean and buff (para 4-11b(2)).
b. Dirty commutator
Buff or replace brushes (para
c. Dirty or worn brushes
4-11b(2)).
Dry with clean lintless cloth.
d. Moisture inside machine
Disassemble machine and
e. Parts not assembled
properly
reassemble (para 4-11b(2)).
f. Broken gear
Replace gear (para 4-11b(2)).
g. Sheared pin
Replace pin (para 4-11b(2)).
Key fails to turn.
Broken gear tooth
Replace gear (para 4-11b(2)).
Noises or binding.
a. Gear sector and stud
Replace gear sector and stud (para
broken
4-11b(2)).
Remove nicks and burs or replace
b. Rough gear teeth
gear (para 4-11b(2)).
Lubricate with a few drops of oil.
c. Dry bearing
Reverse bearing.
d. Worn bearing
4-23
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