Use and Care Manual

6
2. Tanks should be drained of moisture
and hose should be disconnected
and hung with open ends down to
allow any moisture to drain.
3. Protect the electrical cord from
possible damage by winding the
cord loosely around the handle of
the unit or coiling the cord up.
Technical Support
For technical support regarding
operation or repair of this product,
please call 1-800-543-6400.
Operation Daily Weekly Monthly 3 Months
Check Oil Level
Drain Tank
Check Air Filter
Check Safety Valve
Clean Unit
Check Belt Tightness
Change Oil
MAINTENANCE SCHEDULE
Portable Air Compressors
Chart 2
TORQUE REQUIREMENTS (in/lbs.)
Compressor Bearing
Model Head Bolts Cap Bolts
VS 100-125 50-120
VT 225-300 50-120
TC 225-300 50-120
Chart 3
Symptom Possible Cause(s) Corrective Action
Low discharge pressure
Pump overheating causes
air filter to melt
Excessive noise
(knocking)
1. Air demand exceeds pump
capacity
2. Air leaks
3. Restricted air intake
4. Blown gaskets
5. Leaking or damaged valves
1. Insulating gasket between
filter and head is missing
2. Broken valves/blown gasket
1. Loose motor or compressor
pulley
2. Lack of oil in crankcase
3. Worn connecting rod
4. Worn piston pin bores
5. Piston hitting the valve plate
1. Reduce air demand or use a compressor with more capacity.
2. Listen for escaping air. Apply soap solution to all fittings
and connections. Bubbles will appear at points of leakage.
Tighten or replace leaking fittings or connections.
3. Clean the air filter element.
4. Replace any gaskets proven faulty on inspection.
5. Remove head and inspect for valve breakage, misaligned
valves, damaged valve seats, etc. Replace defective parts and
reassemble.
Install a new head gasket each time the
head is removed
1. Install gasket.
2. Replace valves or install new gasket.
1. Loose motor or compressor pulleys are a very common cause
of compressors knocking. Tighten pulley clamp bolts and set-
screws.
2. Check for proper oil level; if low, check for possible damage
to bearings. Dirty oil can cause excessive wear.
3. Replace connecting rod. Maintain oil level and change oil
more frequently.
4. Remove piston assemblies from the compressor and inspect
for excess wear. Replace excessively worn piston pin or
pistons, as required. Maintain oil level and change oil more
frequently.
5. Remove the compressor head and valve plate and inspect for
carbon deposits or other foreign matter on top of piston.
!
CAUTION
Troubleshooting Chart
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