lVacuurn gage
15Speed control handwheel
2Dwell meter
16Indicator light
17Motor switch
3-Tachometer indicator
4Tool box
18Speed range selector
19Cam angle selector
5E1evation handwheel
6Work lamp
20Cam angle adjustment
21Power cable
7Distributor lead
22Vacuum gage adjustment screw
8Ground terminal
23Dwell meter adjustment screw
9Distributor clamp knob
10Ground lead
24Tachometer indicator adjustment screw
1lChuck
25Distributor clamp
12Stroboscope
26Vacuum hose clip
13Vacuum control
27Electrical adapter
14Vacuum hose
until the drive motor stops. Turn
(13) counterclockwise. Then turn
t h e motor switch to right hand
the control clockwise slowly and
rotation and perform the checks as
watch the pointer on the vacuum
for left hand rotation. Turn the
gage. The pointer indicates a max-
imum reading of 21 inches of mer-
motor switch to the off position.
Perform the above checks at 0 to
structions on how to read the
500 rpm with the speed range se-
lector (18) in the "500" position.
vacuum gage.
(4) Unlatch the vacuum hose clip, turn
(3) Turn the motor switch to either
the vacuum control fully counter-
right or left hand position. Latch
clockwise, and the rector switch
the vacuum hose clip (26) closing
the vacuum hose (14). Decrease
to the off position. Disconnect the
power cab1e from the power
the vacuum to approximately 1 inch
of mercury on the vacuum gage
source.
(1) by turning the vacuum control
Section II. CONTROLS AND INSTRUMENTS
N o t e . The key numbers shown below in
parentheses refer to
figure 3.
10. General
12. Ground Lead
The ground lead (10) is located on the
This section describes, locates, and il-
control panel at the upper right of the
lustrates the various controls and instru-
stroboscope (12) and is connected to a
m e n t s and furnishes the operator with
permanent ground terminal (8) on the ter-
sufficient information for the proper op-
minal on the distributor clamp (25) during
eration of the distributor tester.
the distributor test.
11. Distributor Lead
The distributor lead (7). is located on
the control panel at the upper left of the
as "DISTRIBUTOR RPM" on the dial) is
stroboscope (12) and is used to connect
located at the top and to the left on the
the terminal of the distributor being tested
control panel. It is actuated by a cam op-
to the dwell meter (2) through an elec-
erated electrical relay and is calibrated
tronic circuit.
7