JCB-WP80T
Instruction & User Manual
16
Operation
Pump Placement
To safely realize the full potential of this pump, you need a complete understanding of its operation and a
certain amount of practice with its controls.
Before operating the pump for the first time, please review chapter IMPORTANT SAFETY INFORMATION
(pages 5-10) and the chapter titled PRE OPERATION CHECKS (Pages 11&12).
For your safety, avoid starting or operating the engine in an enclosed area, such as a garage. Your engine’s
exhaust contains poisonous carbon monoxide gas which can collect rapidly in an enclosed area and cause illness
or death.
For best pump performance, place the pump near the water level, and use hoses that are no longer than
necessary. That will enable the pump to produce the greatest output with the least self-priming time.
As head (pumping height) increases, pump output decreases. The length, type, and size of the suction and
discharge hoses can also significantly affect pump output.
Discharge head capability is always greater than suction head capability, so it is important for suction head to be
the shorter part of total head.
Minimizing suction head (placing the pump near the water level) is also very important for reducing self-priming
time. Self-priming time is the time that takes the pump to bring water the distance of the suction head during
initial operation.
Discharge Head
Suction Head
Total Head