TM 5-3895-373-34
E.
ASSEMBLE - Continued.
7.
INSTALL NOZZLE TESTING UNIT ONTO
ROTOR HEAD ASSEMBLY AND MEASURE
ROLLER-TO-ROLLER DIMENSION.
a.
Install adapter from DPA tool kit to two high
pressure
outlet
ports
on
rotor
head
assembly (111). Refer to illustration.
b.
Connect pressure port adapter from DPA
tool kit to an air compressor unit equipped
with a relief valve, set to 440 psi (3034
kPa).
Do not allow test pressure to exceed
440 psi (3034 kPa). Damage to
plungers and roller shoes may result
from exceeding test pressure limits.
Use an air compressor unit equipped
with an adjustable relief valve when
testing rotor head assembly.
c.
Raise test pressure to 440 psi (3034 kPa).
d.
Turn rotor head assembly until plungers
(126) and rollers (124) are forced outward
to the maximum position.
e.
Use slide caliper to measure roller-to-roller
dimension.
f.
Roller-to-roller
dimension
must
be
a
maximum of 1.975 in. (50,17 mm).
g.
Turn pump plate assemblies (122 and 127)
until maximum roller-to-roller dimension is
correct.
GO TO NEXT PAGE
2-273
