HALE AP, Technical Manual

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B-2
Removable leg type pullers (middle picture – Snap On OG270 with OG250-10 legs) are easier to
attach to the impeller since the legs detach allowing them to be turned/maneuvered between
the volute and impeller and then reattached to the puller.
OR
Puller For The Impeller Or Bearings
Infrared Thermometer (Precise Non-Contact IR)
Always use an infrared thermometer to determine the temperature of an expected hot item. Do
NOT touch an expected hot surface with bare skin. Use an infrared thermometer to verify TRV
opening or closing temperatures. Take note the temperature may be as hot as 75° C (167° F).
Infrared Thermometer (Precise Non-Contact IR)
Hydraulic Press
A 20 ton (or greater) hydraulic press is primarily used to press gearbox components (typically
bearings). on or off the pump or input shafts. (NOTE: A large arbor press may work.)
Pusher Tubes
The input shaft seal pusher tube is made of a piece of 3-inch diameter, schedule 40, PVC pipe,
3-inches long and is required to fully seat the input shaft seal in the gearbox housing.
Pump shaft pusher tube is made of a piece of 1.5-in diameter (38 mm) by 2-in long (50 mm)
wooden dowel or metal rod and is required to press the pump shaft thru the bearing.
Shaft bearing pusher tube is made of a piece of 2-in diameter (use ONLY 0.188 wall tube) by 3-in
long DOM steel tube and is required to press the pump and input shaft bearing fully onto the
shaft (because of housing recess).