7
200-2966
MAINTENANCE
CHECKING THE OIL
Check the level of oil in the pump with the sight glass. The
pump oil level must be between
A
and
B
. Do not overfill or
underfill.
NOTE:
Use full synthetic, non-detergent air compressor oil.
CHANGING THE OIL
Remove the oil plug (
C
) and drain the oil until it slows to a drip, then
close. Unscrew the oil fill plug (
E
) and add compressor oil (approx. 11.35
oz.) until it is between full (
A
) and add (
B
). Replace the oil fill plug. Never
overfill or under fill the pump.
NOTE:
Use full synthetic, non-detergent air compressor oil.
A = Full
B = Add
C = Oil drain plug
D = Oil level sight glass
E = Oil fill plug
Fig. 7
DRIVE BELT TENSION ADJUSTMENT
NOTE:
Drive belt tensioning and pulley alignment are done at the same
time. They are discussed separately for clarity.
WARNING:
RISK OF INJURY. This unit starts
automatically. ALWAYS shut off the compressor, remove
the plug from the outlet, and bleed all pressure from the
system before servicing the compressor, and when the
compressor is not in use. Do not use the unit with the
shrouds or belt guard removed. Serious injury could occur
from contact with moving parts.
Fig. 8
Proper belt tension and pulley alignment must be maintained for
maximum drive efficiency and belt life. The correct tension exists if a
deflection (see
A
) of 1/2” (13 mm) occurs by placing 5 lbs. (2.3 kg) of
force (see
B
) midway between the motor pulley and the pump flywheel
(See
Fig. 8
). This deflection can be adjusted by the following procedure.
The pulley should be carefully aligned with the flywheel, and all setscrews
should be kept tight.
1. Remove the belt guard.
2. Loosen the motor mounting bolts.
3. Shift the motor to the point where the correct deflection exists
(A & B).
4. Retighten the motor mounting bolts to 130-180 in.-lbs.
5. Check to ensure that the tension remained correct.
6. Reinstall the belt guard. All moving parts must be guarded.
PULLEY ALIGNMENT
NOTE:
Drive belt tensioning and pulley alignment are done at the same
time. They are discussed separately for clarity.
WARNING:
RISK OF INJURY. This unit starts
automatically. ALWAYS shut off the compressor, remove
the plug from the outlet, and bleed all pressure from the
system before servicing the compressor, and when the
compressor is not in use. Do not use the unit with the
shrouds or belt guard removed. Serious injury could occur
from contact with moving parts.
NOTE:
Once the motor pulley has been moved from its factory set
location, the grooves of the flywheel and pulley must be aligned
to within 1/16” to prevent excessive belt wear.
To check pulley alignment, remove the belt guard and place a
straightedge (see
A
) against the pump flywheel (see
B
) (See
Fig. 9
).
Measure and record the distance from the straightedge to the edge of the
drive belt at point C. Then measure the distance from the straightedge
to the edge of the drive belt again at points D and E. Both distances
should be the same as at point C. If D or E are different from C, there is a
misalignment which must be corrected before the compressor is run. To
correct a pulley misalignment, use the following procedure.
1. Remove the belt guard.
2. Loosen the motor mounting bolts.
3. Align the motor pulley with the pump flywheel (C-D-E must be equal ).
4. Adjust the proper belt tension.
5. Retighten the motor mounting bolts to 130-180 in.-lbs.
6. Reinstall the belt guard. All moving parts must be guarded.
1. Remove the belt guard.
2. Loosen the motor mounting bolts.
3. Loosen the setscrew on the motor pulley.
4. Align the motor pulley with the pump flywheel (C-D-E must
be equal ).
6. Retighten the motor pulley setscrew.
7. Adjust the proper belt tension.
8. Retighten the motor mounting bolts to 130-180 in.-lbs.
9. Reinstall the belt guard. All moving parts must be guarded.
Fig. 9
DRIVE BELT REPLACEMENT
WARNING:
RISK OF INJURY. This unit starts
automatically. ALWAYS shut off the compressor, remove
the plug from the outlet, and bleed all pressure from the
system before servicing the compressor, and when the
compressor is not in use. Do not use the unit with the
shrouds or belt guard removed. Serious injury could occur
from contact with moving parts.
1. Remove the belt guard.
2. Loosen the motor mounting bolts.
3. Shift the motor towards the pump to the point where the belts
can be easily removed and installed.
4. Remove and replace belts. NOTE: The belts must be centered over
the grooves on the flywheel and motor pulley.
A
B
