Gorman-Rupp Pumps 83A1-L100EE-X 1512373 and up - Manual (Page 12)

80 SERIES OM-05133
PAGE B - 5 INSTALLATION
Bypass Lines
If a system check valve is used due to high dis­
charge head, it may be necessary to vent trapped
air from the top of the pump during the priming
process. This may be accomplished by installing a
bypass line from the top of the pump, back to the
source of liquid. The end of the bypass line must be
submerged. The line must be large enough to pre­
vent clogging, but not so large as to affect pump
discharge capacity.
GROUNDING
To eliminate electrostatic build‐up by the liquid be­
ing pumped, the unit must be grounded by attach­
ing the ground wire assembly to a ground rod. In­
stall the ground rod in accordance with the Nation­
al Electrical Codes and all local codes. Be sure the
clamp or fastener has made a tight electrical con­
nection with the rod.
Inspect and test the ground wire assembly
for conductivity. Replace broken or frayed
wire before resuming operation.