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The pulse off time is controlled by a rotating commutator per the
positions in table 2.
The rheostat trimmer is used to set the on time.
Min:
80 milliseconds
Max: 650 milliseconds
Adjust on time so that you hear a sharp pulse similar to a shotgun
blast. The pulse is to long if excessive air hisses out of the valve after
the initial blast.
Table II: Off time
adjustment
Pause
Position
(sec)
0
15
1
20
2
25
3
30
4
35
5
44
6
52
7
60
8
75
9
88
A
100
B
118
C
148
D
175
E
210
F
4
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