JABSCO 18400-0050 Manual

SELF-PRIMING PUMP

FEATURES

Body: Bronze
Impeller: Jabsco Neoprene Compound
Shaft: 316 Stainless Steel
Shaft Seal: Lip Type
Ports: 3/4" NPT
Weight: 6 lb (approx.)

APPLICATION

Marine Engine Cooling
FOR ENGINE MODELS
ONAN MDJ-C
MDJ-F

INSTALLATION INSTRUCTIONS

Engine shaft with drive tang, make sure flange seats
squarely on mounting surface and bolt to engine.
Connect inlet and outlet fittings using pipe compound to
seal threads.

OPERATING INSTRUCTIONS

Pump will self-prime at low or high speeds. Make sure
scoop and inlet line are clear and all connections airtight.
Do not run pump dry for more than 30 seconds. Lack of
water flow may damage impeller. To drain pump, loosen
end cover screws.
DIMENSIONAL DRAWINGS
INCHES (MILLIMETERS)

SERVICE INSTRUCTIONS

Impeller Replacement: Remove end cover and gas-
ket. Pull impeller out by grasping hub or blades with pliers.
Replace impeller, gasket and end cover. A light coating of
grease in impeller bore will aid priming on dry start up. (Use
correct Jabsco gasket, a thicker or thinner gasket may
cause impeller damage.) Standard gasket in 0.010" thick.
Major Repair: Remove pump from engine to replace
seal, bearings or shaft. To disassemble pump, remove
end cover, gasket and impeller ar outlined above. Press
on impeller end of shaft to remove shaft and bearing
Model 18400-0050