CLEANING AND INSPECTION
Inspect For Following Condition(s)
Corrective Action When Required
Burrs on gear teeth or scratches along
Polish with crocus cloth. Replace if
any binding with housing exists.
Damage at delivery valve seat or
Replace complete assembly.
Gaskets, Seats and
ALWAYS REPLACE WHEN REBUILDING PUMP
When replacing barrel lower spacer rings, spacer ring installer 9 681 238 902
must be used (see Reassembly- Section 4, Page 1).
Fuel leakage past pump drive stem.
Replace as a complete unit only.
Cracks, stripped screw threads, burrs
on mating surfaces.
Worn bell cranks, damaged weights,
Replace weight assembly as complete
stripped adjusting nut threads, worn
unit. Weight springs and shims may
or damaged springs.
be replaced individually.
ADJUST AS OUTLINED BELOW.
*NOTE: Plug outlet side of transfer pump and pressurize inlet side with air to 103-137 kPa (15-20 psi). When submerged
in fuel oil, no air leaks are permitted past pump drive assembly.
Perform a static check on balanced movement
of governor weights by making a temporary
build-up less springs but using spring seats, trial
spacer bushings (obtained locally) and adjusting
nuts (Figure 1) on each weight as follows:
Figure 1. Details of Flyweight Assembly
Governor Flyweight Assembly
Trial Spacer Bushing
Install double-nutted thru-bolt in weight assembly. Apply
slight pressure to center of bolt and check for excessive
rocking movement in one or the other weights (Figure 2).
If excessive rocking does occur try using a different size
lower spring seat (available in three sizes). When
installing the three different size weight springs, remove
the trial spacer bushings.
Figure 2. Checking Flyweight Trail Build-Up
Rocking Movement 3.
Printed in United States of America