Filter
Top Products
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.