Install Instructions

TECHNICAL DRAWING
1 Handle
2 Inlet Tree Fitting
3 Ball Valve
4 Exhaust Port / Oil Fill Cap
5 Oil Reservoir Screw
6 Oil Reservoir
7 Oil Drain Plug
8 Base Plate Screw
9 Base Plate
10 Rubber Foot
11 Gas Ballast
12 Fan
13 Fan Shroud
14 Fan Shroud Screw & Washer
15 Electrical Housing
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301 Chestnut Street, East Longmeadow, MA 01028 + 1-800-628-8810
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TROUBLESHOOTING
Issue Potential Cause Solution
Failure to
Achieve
Proper
Vacuum
One of the unused inlet
tree fitting caps is loose
Tighten all caps securely
O-ring inside of intake port
cap is damaged
Replace the O-ring
Insufficient oil Add oil to proper level
Pump oil is dirty
or emulsified
Change oil
System leak Check the system for leaks
Incorrect model pump
Choose the correct CFM for
the system
Oil Leaking
Oil reservoir seal is
damaged
Change the oil reservoir seal
Oil housing assembly
connections are loose
or damaged
Fasten screws on the
housing and change seal
Excess
Oil Mist
Excess oil in pump Drain oil to proper level
Continuous operation
under high pressure
Choose the correct CFM for
the system
Failure to
Start
Oil temperature is too low
Warm up the hilmor Vacuum
Pump and oil by running
Contaminants in the pump
chamber
Clean the hilmor
Vacuum Pump
Voltage is too low
Check operating voltage
and supply
Extension cord is too long
Use a shorter extension cord
for power
If these procedures do not correct the issue, contact your nearest
hilmor Distributor or call hilmor Technical Support at 1-800-628-8810.