Moisture In Compressed Air; Maintenance Schedule; Torque Requirements; Troubleshooting Chart - Speedaire 3JR85 Manual De Instrucciones De Operación

Speedaire Operating Instructions
Speedaire
Compressors
E

MOISTuRE IN COMPRESSED AIR

N
G Moisture in compressed air will form
into droplets as it comes from an air
L
compressor pump. When humidity
I
is high or when a compressor is in
S
continuous use for an extended
H
period of time, this moisture will
collect in the tank. When using a
paint spray or sandblast gun, this
water will be carried from the tank
through the hose, and out of the
gun as droplets mixed with the spray
material.
IMPORTANT: This condensation will
cause water spots in a paint job,
especially when spraying other than
water based paints. If sandblasting, it
will cause the sand to cake and clog
the gun, rendering it ineffective.
A filter or air dryer in the air line,
located as near to the gun as
possible, will help eliminate moisture.

Troubleshooting Chart

Symptom
Low discharge pressure
Portable Air
®
Operation
Check Oil Level
Drain Tank
Check Air Filter
Check Safety Valve
Blow Dirt From Inside Motor
Check Belt Tightness
Change Oil
Model
3JR85
4TW29
4B227
4B228
4B229
Possible Cause(s)
1. Air demand exceeds pump
capacity
2. Air leaks
3. Restricted air intake
4. Blown gaskets
5. Leaking or damaged valves
8

MAINTENANCE SCHEDuLE

Daily Weekly
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TORquE REquIREMENTS

Compressor Head bolts
175 in-lbs to 225 in-lbs
Corrective Action
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
head is removed
Monthly 3 Months
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bearing Cap bolts
50 in-lbs to 120 in-lbs