Checking Belt Tension; Installing A New Belt; Operating Your Air Compressor - Makita MAC5501G Operating Instructions Manual

OPERATING PROCEDURES

CHECKING BELT TENSION

Adjust belt(s) so when pressure is applied
at the center, there is approximately 1/2"
slack (see diagram "Figure A" below). If
the belt is installed too tight, the engine
might be overloaded. This will cause the
engine to overheat. If the belt is installed
too loosely, it will slip and excessive wear
and vibration will occur.
HOW TO INSTALL A NEW BELT IF REQUIRED:
1) Turn off engine. Wait until engine is
completely stopped.
2) Remove belt guard.
3) Loosen engine bolts and slide engine
toward compressor head just enough to
allow the old belt to be removed.
4) Install proper replacement belt.
5) Slide engine away from compressor
head to provide recommended tension
as shown in diagram above (Figure A).
6) Align belt using a straight edge ruler
against pulley's edge.
7) Fasten engine bolts.
8) Ensure engine and compressor pulley's
are secure. Re-check alignment.
9) Re-install belt guard.
10) Belt tension should be checked after 20
hours of operation. Check tension
monthly thereafter.

OPERATING YOUR AIR COMPRESSOR

ENGINE - GAS DRIVEN
1) Check the entire unit for any damage.
2) Check compressor and engine oil level,
fill or add if necessary.
3) Make sure gas tank is filled.
4) Read entire engine manual.
5) Starting the engine:
a) Move fuel lever to the "ON"
position.
- If engine is cold, move choke
lever to the "CLOSED" position.
- If engine is warm, leave choke
lever in "OPEN" position.
b) Turn engine switch to "ON"
position.
c) Pull starter grip lightly until you
feel resistance, then pull briskly,
returning starter grip gently -
engine should start. If not, repeat.
d) Once the engine starts running,
slowly move the choke lever to the
"OPEN" position.
e) With the engine running properly,
the compressor fills the air
receiver with compressed air, when
maximum pressure (set by the pilot
valve control) is reached, the engine
and compressor will slow down to
idle speed, and will return to full
RPM when the cut-in pressure is
reached. The unit will continue to
cycle automatically until turned off.
6) Stopping the engine:
a) Turn the engine switch to the "OFF"
position.
b) Turn the fuel lever to the "OFF"
position.
ENGINE IDLE SPEED MAY NEED TO BE
ADJUSTED, EVEN ON YOUR BRAND NEW
UNIT TO COMPENSATE FOR DIFFERENCES IN
ALTITUDE. PLEASE CONSULT THE ENGINE
OPERATING MANUAL.
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