Craftsman 921.153101 - Manual (Page 8)

Maintenance
NOTE: Any service procedure not covered in tSn maintenance sctieduie below should be performed by qualiFied service
personnel.
Items to Check/Change
Before each
use or dally
After first
10 hours
Every
100 hours
Check Tank Safety Valve X
Overall Unit Visual Check X
Check Oil Level ~ X
Change Oil X X
Check Air Rlter (more frequently in dusty or humid environments) X
Drain Tank (after each use or daily) X
A CAUTION
To ensure efficient operation and longer life of the air
compressor unit, a routine msintenance schedule should
be followed The following schedule is geared toward a
consumer whose compressor la used in a normal working
environment on a daily basis. IF necessary, the schedule
should be modified to suit the conditions under which your
compressor is used The modifications will depend upon
the hours of operation and the working environment. Air
compressors used in an extremely dirty and/or hostile
environment will require a greater frequency of all
maintenance checks.
A WARNING
The air compressor should be turned off and unplugged
from the power source before eny maintenance is
performed as well as ihe air bled from the tank and the
unit allowed time to cool Personal Injuries could occur
from moving parts, electrical sources, compressed air or
hot surfaces.
Oil Changing
For changing the pump oil, be sure to do the followirtg:
1. Turn the unit off at>d unplug the power cord from the
receptacle.
2.
Allow the compressor time to cool it It has been in
operation.
3 Open the dram valve to bleed all air from the tank.
4 Close the dram valve.
5. Remove the oil fill cap on the pump.
6 Remove the sight glass with a box end wrench or
socket. Drain the oil Into a suitable container and
dispose of properly. The compressor may neeiJ to be
tipped slightly towards the drain hole to allow all of the
oil to drain.
7. Reatta^ the sight glass Note: Torque the sight glass
10-12 mch lbs. when re-assembling. Be sure the gasket
is between the sight glass and the pump crankcase.
8. Refill the compressor pump vi^h an air compressor oil
such as SAE-30 non-detergent (APt CG/CD Heavy
Duty) oil at slow Intervals untit the o'd reaches the center
of the red arde in №e sight glass Use a SAE-10 during
extreme winter conditions.
Storage
For storing the air compressor, be sure to do the following
1, Turn the unit off and unplug the power cord from the
receptacle.
2 Remove ail air hoses, accessories, and air toole from
the air compressor.
3. Perform the daily maintenance schedule.
4. Open the drain valve to bleed all air from the tank
5. Close the drain valve.
6. Store the air compressor in a dean and dry location.