TM 5-2420-230-24-2
Fuel Pump Back Leakage Valve (005-059)
B3.9 and B5.9 Series Engines
Page 5-96
Section 5 - Fuel System - Group 05
Inspect for Reuse (005-059-007)
Inspect the valve to be sure it is not stuck.
Inspect the sealing surfaces for possible leak paths.
Install (005-059-026)
CAV
16 mm
CAUTION
The installation torque is very critical. Overtightening
can distort the bore in the pump hydraulic head, caus-
ing the rotor to seize in the bore. Never tighten the valve
with the engine running.
Assemble the back leakage valve and new washers.
Tighten the valve.
[22 ft-lb]
17 mm
Connect the high-pressure line. Refer to Procedure 006-051.
L-956