Grainger BI-TANK, Operating Instructions Manual

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5. MAINTENANCE
Read the instruction manual before performing maintenance. The following procedures must be performed when
stopping the air compressor for maintenance or service.
1.
Turn off air compressor.
WARNING: Never assume the air compressor is safe to work on just because it is not operating. It
could restart at any time!
2. Disconnect cord from main power supply.
3. Open all drains.
4. Wait for the air compressor to cool before starting service.
MAINTENANCE CHART
PROCEDURE DAILY WEEKLY MONTHLY 200 HOURS
Check pump oil level X
Oil leak inspection X
Drain condensation in air tank(s) X X
Check for unusual noise/vibration X
Check for air leaks X
Inspect air filter X
Clean exterior of compressor X
Check safety relief valve X
Change pump oil* X
Replace air filter X
*The pump oil must be changed after the first 50 hours of operation and every 200 hours or 3 months, whichever
comes first. We recommend using a straight weight detergent oil that is specifically blended for air compressor.
6. TROUBLESHOOTING
CHECKLIST
PROBLEM
•
Air compressor will
not start
•
Guest complains of
excessive trippings of
reset button
•
Intake filter or gauge
is broken
CAUSE
Reset button for thermal overload
protection has tripped
Tank pressure has reached top-end
pressure switch setting
Oil too thick due to storage in colder
temperatures.
Machine is brand new and needs to
be “broken in”.
Improper gauge of extension cord is
being used.
Shipping damage or inadvertent guest
error.
REMEDY
Locate reset (red) button, and press it firmly until
click is heard. Evaluate oil weight, use of
extension cords etc.
Drain or use compressed air until low-end
pressure setting is reached.
Change oil to synthetic blend or winter grade air
compressor oil, and/or open tank drain(s), and
allow pump to run fro 30/60 seconds unloaded
before attemping to cycle machine normally.
Open tank drain to start, and keep drain slightly
open to force additional cycling until break-in
period is reaching (40 hrs.)
Make sure guest is using 12 gauge (maximum
25’) or 10 gauge (maximum 50’) extension cord.
Contact after sales service for replacement
For additional informations and/or different problems, please read carefully the following pages