Craftsman 919.195400 Operator's Manual page 21

PROBLEM
Excessive belt wear
Squealing sound.
CAUSE
Loose belt.
Tight belt.
Loose pulley.
Pulley misalignment.
Loose belt.
Compressor pump has no oil.
21 - ENG
CORRECTION
Loosen wingnut and then tighten
wingnut until it contacts the wash-
er, plus one turn.
Loosen wingnut and then tighten
wingnut until it contacts the wash-
er, plus one turn.
Have checked by a Trained
Service Technician.
See Motor Pulley/Flywheel
Alignment paragraph in the
Maintenace section.
Loosen wingnut and then tighten
wingnut until it contacts the wash-
er, plus one turn.
See Oil-Checking paragraph in the
Maintenace section.
D22171