3
Single-Stage Compressor Pumps
www.chpower.com
For pumps with an oil sight glass, oil
level can be monitored and maintained
as shown in Figure 3 .
BReAk-In
After installing compressor, start the
new pump and run without a load (0
PSI) for 30 minutes . With a pressure
regulator set to 40 PSI and no tool or
hose connected to the outlet, run the
compressor for another 30 minutes .
Maintenance
Release all pressure from the
system before attempting to
install, service, relocate or
perform any maintenance.
FOR eFFICIenT OPeRATIOn BeFORe
eACh USe:
1 . Check air filter .
2 . Check oil level . Low oil level will
result in rapid wear and short pump
life .
TORqUe ReqUIReMenTS (In/lBS.)
Model
Compressor
head Bolts
Bearing
Cap Bolts
All VT
models
175-225
50-120
TeChnICAl SeRvICe
For information regarding the
operation or repair of this product,
please call 1-800-543-6400 .
Assembly
ASSeMBlY InSTRUCTIOnS
Disconnect, tag and lock out
power source, then release
all pressure from the system
before attempting to install, service,
relocate or perform any maintenance.
FlYWheel (vT2030 & vT2731 OnlY)
Place flywheel on the crankshaft with
setscrew threads on the outside . Tighten
setscrew to 19ft . lbs . on the key . Keep
the setscrew tight . A loose flywheel
causes a knocking noise .
AIR FIlTeR InSTAllATIOn
1 . Screw inlet filter into 1/2” NPT
threaded inlet port on compressor
head .
lUBRICATIOn
This unit contains
no oil! Follow
lubrication instructions before
operating compressor.
Model
Approximate
Oil Capacity
(oz.)
VT4700 and VT4800
8 .5
ALL MODELS
Ensure oil drain extension has been
installed (if included), then remove
the dipstick/breather and fill pump
with oil . Use SAE 30 Industrial Grade
compressor oil or full synthetic motor
oil like Mobil 1® 10W-30 . Do not use
regular automotive oil such as 10W-30 .
Additives in regular oil can cause valve
deposits and reduce pump life .
Proper oil fill is illustrated in Figure 2 .
Figure 1 - Air Filter
Low
Max
Figure 2 - Oil Fill
Full
Add
Add Oil
Dipstick
Breather
Cap
Oil Drain Extension
(Not included with all models)
Figure 3
Full
Add Oil
MOISTURe In COMPReSSeD AIR
Moisture in compressed air will form into droplets as it comes from an
air compressor pump . When humidity is high or when a compressor is in
continuous use for an extended 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 in the air line, located as near to the gun as possible, will help eliminate
this moisture .
