TM-9-2910-226-34
PUMP, FUEL, METERING AND DISTRIBUTING, ASSEMBLY
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT, MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS
JUNE 1974
TM-9-2910-226-34 - Page 158 of 208
TM 9-2910-226-34
3-61. Tappet Assembly.
Fig
No.
B-8
Ref.
letter
c
a
b
a-b
d
b-d
a
a-b
d
b-d
Point of measurement
GUIDE ASSEMBLY GU9021A, PIN P/N 9039,
ROLLER ASSY. PL768A (CODES A, B, C, D.
E, F Pumps)
ID of roller bushing type bearing
OD of tappet roller pin
Fit of pin in roller bearing
ODof tappet roller
ID of pin bore in guide
Fit of pin in guide bore
GUIDE ASSEMBLY GU9011A, PIN P/N 9013,
ROLLER ASSY. PL903A (USED ON CODE G PUMP)
ID of roller bushing type bearing
OD of tappet roller pin
Fit of pin in bushing
OD of tappet roller
ID of bore in guide
Fit of pin in guide bore
c
3-62. Fuel Supply Pump Assembly.
Fig.
No.
B-5
Ref.
letter
Point of measurement
a
b
c
b-c
d
a-d
e
ID of shaft bore in housing
OD of idler gear pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ID of idler gear. . . . . . . . . . . . . . . . . . . . . .
Fit of gear on pi n . . . . . . . . . . . . . . . . . . .
OD of drive shaft . . . . . . . . . . . . . . . . . . . . . . . .
Fit of shaft in housing . . . . . . . . . . . . . . . . . . . . .
..
Check valve spring:
Free Length. . . . . . . . . . .
Spring rate . . . . . . . . . . . . . . . . . . . . . . . .
Lb compression at 0.3120-inch length . . . . . . . . . . . .
Overflow valve spring in Pump Cover:
(1) Spring SP 9044, (CV9057A, 80 psi) (used
on LDS-465-2, code A Pump).
Free length, inches . . . . . . . . . . . . . . . . . . .
Spring rate, lbs/in. . . . . . . . . . . . . . . . .
Lbs. compression at 0.890-inch length . . . . . .
Lbs. compression at 0.680-inch length . . . . . . . . .
(2) Spring SP7961, (CV9052A, 60 psi) (used
on LDS-465-1, code F Pump)
Free length, inches. . . . . . . . . . . . . . .
Spring rate, lbs/in. . . . . . . . . . . . . . . . .
Lbs. compression at 0.840-inch length . . . . . . . . . . .
Sizes and fits
of new parts
0.4732 to 3.4739
0.4723 to 0.4725
0.0007L to 0.0016L
0.9839 to 0.9845
0.4730 to 0.4738
0.0005L to 0.0015L
0.3749 to 0.3754
0.3742 to 0.3745
0.0004L to 0.0012L
0.6689 to 0.6693
0.3750 to 0.3758
0.0005L to 0.0016L
Sizes and fits
of new parts
0.4375 to 0.4380
0.3121 to 0.3124
0.3125 to 0.3130
0.000lL to 0.0009L
0.4365 to 0.4370
0.0006L to 0.0010L
0.5420
63 to 70
14 to 18 lbs
1.995
37.5
3.9
11.7
1.000
30
4.55
Wear limits
(direct and
general support
maintenance)
0.4745
0.4720
0.0018L
0.9837
0.4729
0.0016L
0.3760
0.3739
0.0014L
0.6688
0.3760
0.0018L
Wear limits
(direct and
general support
maintenance )
l
l
l
*
l
l
61./3
13.6 lbs
1.95
36.0
3.8
11.3
4.4
* See paragraph 3-59.
3-112
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