TM 9-2320-279-20-3
22-6
Change 6
Non-Electrical Gage Maintenance Instructions (Cont)
22-5. DPG DIFFERENTIAL PRESSURE GAGE REMOVAL/INSTALLATION (M978)
(CONT).
a. Removal.
NOTE
There are two types of gages. Model A
bezel has no securing screws; Model B has
two screws to secure bezel to gage. Do
step (1) for Model A. Do step (1.1) for
Model B.
(1)
Remove bezel (1) and lens (2) from
DPG DIFFERENTIAL PRESSURE
GAGE (3).
(1.1) Remove two screws (3.1), bezel (1), and
lens (2) from DPG DIFFERENTIAL
PRESSURE GAGE (3).
(2)
Disconnect two tubes (4) from elbows (5)
on each side of DPG DIFFERENTIAL
PRESSURE GAGE (3).
(3)
Remove two elbows (5) from DPG
DIFFERENTIAL PRESSURE GAGE (3).
(4)
Remove two screws (6) and fiber
washers (7) from bracket (8) and
remove DPG DIFFERENTIAL
PRESSURE GAGE (3).
b. Installation.
NOTE
There are two types of gages. Model A bezel has no securing screws; Model B has two
screws to secure bezel to gage. Do step (1) for Model A. Do step (1.1) for Model B.
(1)
Install lens (2) in bezel (1) and install on DPG DIFFERENTIAL PRESSURE GAGE (3).
(1.1) Install lens (2) in bezel (1) and install on DPG DIFFERENTIAL PRESSURE GAGE (3) with two
screws (3.1).
(2)
Install DPG DIFFERENTIAL PRESSURE GAGE (3) on bracket (7) with two fiber washers (7)
and screws (8).
WARNING
Adhesives, solvents, and sealing compounds can burn easily, can give off harmful vapors,
and are harmful to skin and clothing. To avoid injury or death, keep away from open fire
and use in well-ventilated area. If adhesive, solvent, or sealing compound gets on skin or
clothing, wash immediately with soap and water.
(3)
Apply pipe thread sealing compound and install two elbows (5) in DPG DIFFERENTIAL
PRESSURE GAGE (3).
(4)
Connect two tubes (4) to elbow (5).
c. Follow-on Maintenance.
(1)
Recirculate fuel (TM 9-2320-279-10).
(2)
Check DPG DIFFERENTIAL PRESSURE GAGE for leaks and proper operation.
(3)
Close pump module rear access doors (TM 9-2320-279-10).
END OF TASK
