F-1031, Section 2206
Page 3 of 4
General Description for KC Series Transmission
The KC transmission is similar to the K and T transmission discussed earlier,
but includes a hydraulically engaged multiple disc wet clutch. A 12 volt hy-
draulic pump with control switch and indicator light allows the operator to en-
gage or disengage the clutch with the movement of a toggle switch.
Electronic Tachometer Drive
An electronic tachometer with a magnetic pick-up is available as an option for
the KC transmission. This electronic pick-up senses the impeller shaft speed
not the input shaft speed.
The magnetic pick-up in the transmission mates with an Amphenol connector
(P/N MS3106A-10SL-4S). This connector may be wired to a wall mount re-
ceptacle on the operator's panel with a cable available from Waterous Com-
pany.
The number of teeth on the driven gear (pulse generator) varies with the dif-
ferent gear ratios and affects the frequency that the tachometer picks up.
The number of teeth on the driven gear can be determined from the table be-
low.
Ratio
3.40
2.83
2.45
2.14
1.88
1.65
1.56
1.38
1.30
1.16
Number of
Teeth
25
18
20
22
24
26
27
29
30
32
Correction
Factor (K)
2.4
3.333
3.0
2.727
2.5
2.308
2.22
2.07
2.0
1.875
The rotational speed of the impeller shaft can be calculated by multiplying the
frequency from the tachometer sensor by the correction factor, K.
(Hz) x K = RPM
To Engage Clutch
Operating Instructions for KC Series Transmission
To Disengage Clutch
Set switch in the engage position. This will turn the hydraulic unit on to engage
the clutch. Once the clutch is engaged, the green light will turn on, the hydrau-
lic pump will stop and the system will maintain the fluid pressure.
Set switch in the disengaged position.
Clutch engagement and disengagement is only recommended at low engine
speeds. The operator should be aware of the resulting pump load and the re-
lated effects before operating the clutch.
