CHAPTER 2
OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF MATERIEL
screws. Remove the four setscrews from
8. Purpose
t h e rails and secure the tester to the
a. When a new or reconditioned tester
bench using four l/4-inch flat washers,
is first received, it is the responsibility
four l/4-inch split lock washers, and four
o f the officer in charge to determine
1/4-28 hexagon head cap screws of the
whether the materiel has been properly
required length.
p r e p a r e d for service by the supplying
d. Lubrication. Lubricate the tester as
organization and to be sure it is in con-
prescribed in paragraph 53.
dition to perform its function. For this
e. Inspection.
purpose, inspect all assemblies and parts
Note. The key numbers shown below in parenthe-
to be sure they are properly assembled,
ses refer to figure 3.
secured, cleaned, adjusted, and/or lubri-
(1) Turn the dwell meter adjustment
cated.
screw (23) and the tachometer in-
b. Make a record of any missing or
dicator adjustment screw (24)
damaged parts, tools, and/or equipment,
clockwise and counterclockwise to
a n d of any malfunctions. Correct any
be sure they control the pointers
deficiencies as quickly as possible.
and that the pointers are not bind-
ing. Set both pointers on zero. Set
9. Services
the vacuum gage (1) to its lowest
point by turning the vacuum control
a. Unpacking and Checking. Remove the
(13) fully counterclockwise and ad-
top and all four sides of the box. Remove
just the pointer to zero (if required)
all barrier materials. Unlatch and remove
by turning the vacuum gage adjust-
the cover from the tester. Tilt the tester
ment screw (22) through the glass
or lay it on its side and remove the four
on the dial face. Turn the motor
1/4-28 x 1-1/4 cap screws holding the
switch (17) off.
tester to the bottom of the box and remove
(2) Connect the power cable (21) to a
the tester. Unpack all tools and equipment
1 1 5 - v o l t 60-cycle sing1e-phase
from the tool box and check against the
source. Turn the motor switch (17)
tools and equipment listed in appendix II.
to the left hand rotation. Turn the
Note. When unpacking, check all wrappings close-
speed range selector (18) to "2500"
ly to he sure that no tools or equipment are dis-
position. Reduce the speed of the
carded with the packing material.
stroboscope drive shaft to its
b. Cleaning. Clean the tester and all
lowest speed by turning the speed
tools and equipment as prescribed in para-
control handwheel (15) clockwise
graph 43.
as far as possible. Slowly increase
c. Installation. Determine the position
t h e speed by turning the speed
the tester is to be placed on the bench
control handwheel counterclock-
and screw four 1/4-28 headless or socket
head setscrews reversed in the four tapped
w i s e . Listen for unusual noises
and watch tachometer indicator (3)
holes in the rails on the bottom of the
to see if the speed increases at a
tester. Place the tester in position on the
steady rate as the speed control
bench allowing its weight to mark the bench
handwheel is turned. Reduce the
at the setscrews. Lift the tester off the
speed to its minimum and turn the
bench and drill four 5/16 holes through
motor switch to the off position
the bench at the spots made by the set-
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