TM 9-2910-226-34 (f) Overflow valve-to-test stand fuel return hose (D) to the test stand fuel return. (2) Remove improvised manifold (fig. 3-163 or 3-169) consisting of adapters (J and K), tee (H), and elbow (G) from the compensator inlet tee (on code G pumps remove adapter) (C, fig. 3-165), coupling (B) and elbow (A) from elbow at hydraulic head inlet. (3) Disconnect and remove the tube assemblies from the pump head to the test nozzles (fig. 3-169). (4) Remove throttle holding spring (fig. 3-163). Install pipe plug in rear of governor housing (A, B, E, and F pumps). (5) Loosen the pump and bracket clamp holding the pump to the rails, and tip the pump assembly to drain oil and fuel. Remove pump from test stand. (6) Plug or cap openings in pump to prevent entry of dirt. (7) Remove the retaining nut and lockwasher on the pump shaft, and remove the test stand drive hub from the pump, (8) Remove the adapter ring and bracket from the pump. (9) Torque tighten high-speed adjustment screw hex nut and the idle adjustment screw locknut to 50-60 inch-pounds (fig. 3-173). Figure 3-176. Tamper-proof covers, installed view. (10) On code A pumps, install locking wire on the two socket head screws attaching the electric fuel shutoff solenoid to the pump. (11) Install locking wire on the governor end cover screws and quill shaft access plate screws. (12) Install seals to prevent unauthorized tam- pering of pump adjustments as follows. Refer to figures 3-176 and 3-177. (a) Upper dust cover. Install new seal, in- serting the wire through the hole in the head of the capscrew and through the boss protruding from the cover. Crimp the seal using sealing pliers. (b) Closure cover on fuel adjustment. Install cover over the fuel adjustment guide locknut on the density compensator housing flange, using the two drilled head housing mounting screws. Install the new lead seal by threading the sealing wire through the front compensator to governor housing screws. Insert wire through the lead seal and crimp using sealing pliers. (c) Compensator servo pressure valve. Pumps with fuel density compensators should have seals in place. If they are not, install sleeve, and thread wire of lead seal as shown in figure 3-177, and crimp using sealing pliers. Figure 3-177. Installation of seal wire on fuel density compensator servo-pressure valve sleeve. 3-109