Maintenance Schedule - Check Chart - Schrader International 7.5 & 10 HP Electric Operation & Maintenance Manual

MAINTENANCE SCHEDULE - CHECK CHART

PROCEDURE
Check Oil Level. Caution! Do not overfill.
Give Compressor overall visual check.
Drain moisture accumulation from the air receiver and system
piping.
Check the air distribution system for air leaks. Remove and
clean intake air filters. Do not oil.
Clean cooling surfaces of compressor, intercooler and
aftercooler
Check V-belts for tightness. Belt tension should be adjusted
to allow approximately 1/4 - 1/2 inch deflection with normal
thumb pressure.
Turn power off and clean dust and foreign material from
cylinder head, motor, fan blade, air lines, intercooler and tank.
Operate safety valves (pressure relief valve).
Replace or clean intake filter element monthly or more often
if needed.
Inspect oil for contamination and change if necessary.
Check belts for correct tension and alignment.
Check flywheel and motor pulley for tightness. Check
pulley clamp bolts and set screws for tightness.
Every 90 days also check entire system for air leakage
around fittings, etc. using a soap solution. Tighten nuts and
cap screws as required.
Every 90 days or 1,000 operating hours, whichever comes
first, change crankcase oil. Use type and grade recommended
in paragraph on lubrication. Change oil more frequently if
compressor is located in dirty environment.*
Inspect valve assemblies.
Inspect cushion chamber, if so equipped, and discharge line
for excessive carbon accumulations.
Inspect pressure switch diaphragm and contact points.
Inspect contact points in motor starter.
Service electric motor.
Service gasoline engine.
X - Check more often if extremely dirty conditions exists.
XX - Every 6 months.
‡ Per Manufacturer's Recommendations.
* Change oil after first 50 hours (or two weeks) of operation if new or relocated.
22
Daily Weekly Monthly
X
X
X
X
X
X
X
‡ ‡
‡ ‡
Quarterly Yearly
X
X
X
X
X
X
X
‡
‡
XX
X
X
X
‡
‡