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Remove impeller (16) by threading a 9/16-12 NC x 1 3/4 pusher bolt into the
tapped hole occupied by the impeller bolt. Do not force impeller, use penetrating
oil on the engine shaft if the impeller will not move.
Pump casing should be removed only if necessary to replace pump pilot bushing
(20).
Inspect and replace worn or damaged parts. If you are unsure if a part is damaged
or worn contact Darley Customer Service or Engineering for assistance. If seal
rings need to be replaced it is STRONGLY recommended to send the pump unit
back to Darley for removal and re-placement. Personal removal and replacement
of these seal rings may damage the pump casing if not done properly. If you insist
on personal removal contact Darley Engineering for assistance.
For pump re-assembly follow the corresponding steps
Use Loctite 242/243 (Blue) thread locker or equivalent on all pump related
fasteners.
If the pump casing was removed, re-install the pump pilot bushing (see photo
below). With a small punch, in a 90 degree pattern, punch the pilot bushings
edges into the pump casings bore for the bushing. (see photo below).
Prepared by: RJG
Approved by: TED
Revised by: TED
Rev. A
Date: 03/04/10
Rev. Date: 30June2015
1200627.doc
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