R e p a i r . Repair minor damage to fuel pump by filing burrs on threads of
R e l i e f Valve Adjustment.
Smoking, sparks or open flames are not allowed
w i t h i n 50 feet of work area during this task.
F i r e or explosion could occur? causing injury
t o personnel and damage to equipment.
This is an alternate procedure given for refer-
e n c e p u r p o s e s o n l y . S t a n d a r d procedure is to
a d j u s t relief valve during dynamometer test and
Flame heater fuel pump electrical system is negatively
g r o u n d e d . Pin A is positive and pin B is negative. Do
n o t switch polarity of pump during checking or replace-
m e n t . Changing polarity will permanently damage pump.
Hook up h o s e (1) from supply (2) of diesel fuel to pump inlet (3).
Hook up r e t u r n hose (4) from fuel pump outlet (5) back to supply tank (2).
R e t u r n hose must be 200 psi on pressure gage (6) and adjustable valve (7)
m u s t be put on as shown.
Hook up 24-volt battery (8) with rheostat (9) to fuel pump receptacle.
H o o k up voltmeter (10) to fuel pump.
GO TO FRAME 2