TM 5-3805-280-24-2
Heating and Air Conditioning
26. Inspect discharge valves (A) for general condition.
Valves should have slight pressure against valve
plate.
27. Hold valve plate up to light and verify that valve is
against its seat. If condition is doubtful, replace valve
plate.
A--Discharge Valves
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1921SEP9817/26
28. Inspect cylinders for scoring or excessive wear. If
cylinders are scored or damaged, replace
NOTE: Some cylinder scuffing (light scratches) is normal.
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1921SEP9818/26
29. Inspect surfaces of clutch pulley (A) and clutch hub
(B). If pulley is more than 0.3 mm (0.012 in.) from flat,
18
replace pulley and clutch hub.
1830
21
Clutch Pulley and Clutch Hub--Specification
Flatness ........................................................ 0.3 mm (0.012 in.) maximum
30. Rotate bearing in pulley. If pulley is rough or has
evidence of loss of lube, replace bearing.
31. Clean as necessary.
A--Clutch Pulley
B--Clutch Hub
Continued on next page
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1921SEP9819/26
18-41
