Section Il. CONTROLS AND INSTRUMENTS
left of the stroboscope and is calibrated
in degrees from 0 to 50, with each individ-
This section describes, locates, and il-
ual marking indicating one degree of cam
lustrates the various controls and instru-
angle.
ments and furnishes the operator with suf-
ficient
information
for
the
proper
17. Corn Angle Adjustment
operation of the distributor tester.
The cam angle adjustment (19) (identi-
11. Power Cable and
Power Switch
fied as "ADJUST CAM ANGLE") is located
The cable (3A) and switch (3B) (identi-
on the left side of the instrument panel
fied as "A, C. LEAD & SWITCH, OFF-ON")
between the dwell meter and the tacho-
are located in the upper left hand corner
meter indicator and is used in con-
of the instrument panel.
junction with the meter selector to aline
the p o i n t e r of the dwell meter (22) with
the "ADJUST TO" reference line on the
12. 115-Volt Electrical Receptacle
meter scale.
This receptacle (4) (Identified as" LAMP
SOCKET") is located to the right of the
power switch (3 B), and indicates that the
receptacle is the power source for the
The meter selector (20) is located to the
work lamp.
right of the cam angle adjustment and be-
tween the dwell meter and the tachometer
indicator. It is used to select the cam angle
required for testing 4, 6, or 8 lobe distri-
Coil No. 1 lead (5) (identified as "COIL
butors, and in conjunction with the cam
#1 LEAD") is located just below the power
angle adjustment (19), to aline the dwell
cable; Coil No. 2 lead (8) (identified as
meter pointer, (16 above).
"COIL #2 LEAD") is located on the right
side of the instrument panel directly op-
posite the Coil No. 1 lead.
as "R.P.M." on the dial face) is located
on the left side of the instrument panel
The motor reset button (7) (identified as
directly below the cam angle adjustment
"MOTOR RESET") is located to the right
(19) and the meter selector (20). It is ac-
of the Coil No. 1 lead and directly below
tuated by a small built-in precision gen-
the 115-volt electrical receptacle. The re-
erator and is calibrated to indicate distri-
set button is used to reset the switch pro-
butor shaft revolutions per minute. It has
vided as over-load protection for the drive
two scale ranges: 0 to 500 and 0 to 2500
motor.
rpm.
20. Speed Range Selector Switch
The cam angle lead (6) is located di-
The speed range selector switch (16)
rectly below the Coil No. 1 lead (5) and is
(identified as "DISTRIBUTOR R.P.M.") is
used to connect the distributor primary
the two position toggle switch located di-
circuit to the dwell meter.
It is used to select the desired range on
the tachometer indicator; to the left for 0
to 500 rpm and to the right for 0 to 2500
The dwell meter (22) (identified as "CAM
rpm.
DWELL" on the dial face) is located to the