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Installation (continued)
6. Connect discharge hose (not included) to the pump discharge port. It is best to use a short, large-diameter hose, because this
will reduce fluid friction and improve pump performance. A long or small-diameter hose will increase fluid friction and reduce
pump output.
7. Tighten the clamp securely to prevent the discharge hose from disconnecting under high pressure.
INSTALLATION REQUIREMENTS
□ Use reinforced hose to make the suction connection.
□ Hose must be strong enough to not collapse during operation.
□ Suction screen area must be at least four times suction pipe area.
□ All suction hose must slope up toward the suction port.
□ Support the hose and fittings to reduce strain on the pump case.
□ Depth of suction port must be at least four (4) times the diameter of suction hose to avoid forming vortexes.
Example: 2" Pipe x 4 = 8" minimum depth
Operation
NOTE: Do not start or run the pump dry or damage to the mechanical seal will result.
NOTE: Add engine oil before startup.
1. A self-priming pump only needs to be manually primed at the first start-up. Once primed, under normal conditions the pump will
reprime automatically at each subsequent start-up. If the pump is used in portable applications and the water has been drained
from the pump case, re-prime before start-up.
2. To prime, remove the water filler plug (6) from the top discharge port and fill the pump with water. Replace the plug and start
the pump. The pump will require a few minutes to evacuate air from the suction line. After several minutes of operation, the
pump will be fully primed and pumping water. Priming time will vary depending on the length and diameter of the suction line.
3. Refer to the Before you Start the Engine and Engine Operation sections of this manual for starting and operating instructions.
Clamp
Hose
connector
Discharge hose
Discharge hose
Clamp
Discharge port
Washer
Pipe joint
Joint
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