Installing New Atlas Motor Kits
© 2006 GASBOY
7300 West Friendly Avenue • Post Office Box 22087
Greensboro, North Carolina 27420
Phone 1-800-444-5529 •
• Printed in the U.S.A.
MDE-4541 Atlas™ Motor Kit M06699KXXX Installation • February 2006
.
Optimizing the Adjustment on the Bypass Spring Preload
If the amperage from the initial test is low and the flowrate needs increasing, follow this
procedure to adjust the bypass preload. Do not increase the preload if the amperage is at the
maximum.
Note: Before making adjustments, ensure that the motor has been switched off.
To optimize the adjustment on the bypass spring preload, proceed as follows:
1
Remove the adjustment cap on the pumping unit. Refer to
which shows adjustment
cap removed.
Figure 4:
Pressure Port Ref
Adjustable Bypass
Screw
Vacuum Port Ref
Atlas Pump - Pressure Pump and Bypass Screw
2
If the amperage from the initial test is low, turn the adjustment screw clockwise and increase
the preload (and thus the flowrate and motor load).
Note: If the initial bypass voltage is below 205 volts for a 220-volt system, or below 100 volts
on a 110-volt system, the wiring is insufficient to handle full motor loads. In this case,
the maximum amperage needs to be set to a maximum of 4.9 amps on a 220-volt system
and 9.5 amps on a 110-volt system. Refer to
3
Check the amperage at full flow and at bypass (both must be checked to verify proper loading
on the motor).
4
Adjust the screw to obtain just below the maximum amperage setting (4.9 amps on a 220-volt
system and 9.5 amps on a 110-volt system).
5
Replace the adjustment screw cap. Disconnect the amp probe, replace the junction box cover
and button-up the unit.
Completing Installation
Inform the manager/owner that power will be restored to the unit and then restore power using
normal procedures. Remove the lockout/tagout and return to normal operation.
Atlas
™
is a trademark of Gasboy.
