22
Manual 4804 Rev C p/n 004804 0000
08
REASSEMBLY
GENERAL
All pans must be clean. Clean off old sealant ¿ lm
at housing interfaces and remove with an effective
solvent. All joint and impeller faces must be free of
any nicks.
OTE: N
• Standard cast-iron construction
FA and BA pump housing joints
are sealed with Loctite Corp./
Permatex Aviation Form - A - gasket
liquid sealant 3H, thinning solvent
Denatured Alcohol.
• Stainless steel pumps CD3 are
assembled with PTFE glass-¿ lled
gaskets in lieu of sealant. Note: Iron
pumps designated for hot operation
(220°F [104°C] limit) are assembled
with paper shims and gasket liquid
sealant 3H.
• Sealant (when used) must be applied
lightly on one surface of joint with
a small stiff brush. The sealant can
must be capped when not in use to
avoid solvent evaporation. If needed,
use listed thinner to maintain original
À uid consistency.
• Assembly should proceed without
interruption until tie-rods for the
pump are half-tightened to prevent
early setting of sealant.
• The following torque values (ft-lbs)
apply for fasteners. Always replace
the end plate screws. Use new
stainless steel cap screws with nylon
locking inserts. DO NOT REUSE THE
OLD SCREWS.
• For installation with multiple pumps
and in-house repair, it is helpful to
have cast-iron dummy bearings
with outside diameter 0.001" smaller
than, inside diameter 0.001" larger
than, and width equal to the NDE ball
bearing.
• Ball bearings for pump models -HT
(as shown on the nameplate) prior
to August 1998 are lubricated with
special high-temperature grease and
are etched on the outside diameter
“Spec. lube.” They should not be
replaced with standard bearings.
Table 8-1
Pump Model End Plate Screws Tie-Rod Nuts BRG HSG Screws
40/75 20-25 40-45 25-30
125 15-20 40-45 25-30
200/300 20-25 40-45 30-35
525 25-30 60-65 40-45
950 25-30 70-75 40-45
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