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 TM 9-2520-270-34
CHECK DEPTH OF PUMP HOUSING
12.
CAVITY (1).
Using depth gage measure
a.
depth of cavity (1).
If measurement is greater than
b.
1.003 inches (25.46 mm), go to
13. DISASSEMBLE SHAFT (3).
step 12.1. If not, go to step 13.
a. Remove inner rotor (4).
REPLACE HOUSING (2). RECORD
12.1
b. Remove and discard woodruff key (5)
FAILURE ON DA FORM 2407 AND
c. Using screwdriver, remove retaining
RETURN DEFECTIVE HOUSING TO
ring (6). Discard retaining ring.
DEPOT.
CAUTION
Keep eccentric ring and outer rotor together
when measuring thickness to prevent loss of
spring and vane.
Inner and outer rotors must stay a matched
set. Damage to equipment can occur.
14. CHECK GEAR ROTOR SET (7).
a. Using micrometer caliper set,
measure thickness of inner rotor (4)
and outer rotor (8).
b. Replace gear rotor set (7) if either
measurement is less than 0.998 inch
(25.35 mm) and go to step 15.
c. Using micrometer caliper set,
measure thickness of ring (9)
d. Replace gear rotor set (7) if
measurement is less than 0.985 inch
(25.02 mm).
GO TO NEXT PAGE
4-477
Change 2
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