Hale MG - Manual (Page 72)

Muscle Pumps
5-8
e. Slowly and evenly turn the jacking
screws clockwise to move the rear
bearing housing away from the pump
body.
f. As the rear bearing housing moves
back remove the gear and gear key
from the impeller shaft and bearing
housing as they clear the shaft. Do not
allow the weight of the rear bearing
housing to rest on the oil seal.
g. After the gear and key are removed,
carefully remove the rear bearing
housing from the impeller shaft being
careful not to damage the oil seal.
h. Remove the slinger from the impeller
shaft.
i. Using a center punch, matchmark the
mechanical seal cover and mechanical
seal housing. Remove four 7/16-14 x
1-1/4 inch long cap screws that secure
the mechanical seal cover to the
mechanic al seal housing.
j. If necessary, use pry bars in the slots
provided to loosen the mechanical
seal cover from the mechanical seal
housing. Remove the mechanical seal
cover from the impeller shaft.
k. Remove the old mechanical seal from
the mechanical seal housing and
impeller shaft. Two small hooks will
aid in removal of these components.
l. After all components are removed,
carefully inspect bearings and other
parts for excessive wear or damage.
Order new components from Hale if
replacement is required.