TM 9-2320-272-24-4
5-36. FUEL INJECTION PUMP MAINTENANCE (Contd)
g. Plunger and Control Rack Installation
NOTE
Perform step 1 if control rod was removed.
1.
Install new control rod (1) on fuel pump housing (9).
2.
Install washer (2), spring (3), and cap (4) on control rod (1).
3.
Install control rack (5) and retaining plate (6) on fuel pump housing (9) with two screws (7).
4.
Mount fuel pump housing (9) bottom side up in vise.
5.
Position control rack (5) so guide slits (8) align with notch (18) on fuel pump housing (9).
NOTE
Control sleeve balls engage guide slit on control rack.
6.
Install six upper control sleeves (15) into mating barrels (16).
7.
After all control sleeves (15) are installed, move control rack (5) back and forth to ensure control
sleeves (14) move freely.
CAUTION
Once correct alignment is obtained, secure control rack in this
position until tappets are installed. Failure to do so may result in
damage to control sleeves.
8.
Position control rack (5) so guide slits (8) face adjusting groove (17) on barrel (16).
9.
Coat six upper spring seats (14) with GAA grease and position on control sleeves (15).
10.
Install six springs (13) on mating control sleeves (15).
CAUTION
Notch on plungers must align exactly with groove on barrel. If
alignment is not obtained, damage to fuel pump may result.
11.
Install six plungers (12) into mating barrels (16) so notched mark (11) on plunger base points
toward adjusting groove (17) on barrel (16).
12.
Install six lower spring seats (10) on plungers (12) and rotate lower spring seats (10) 90.
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