Warner Electric TG-2000 MagStop Clutch_Brake User Manual
Page 16
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Warner Electric • 800-825-9050
P-1177 • 819-0457
Electrical Evaluation
Step 1. How to Measure Clutch Coil resistance
(See Figure 5)
1. Turn engine and PTO switch off.
2. Disconnect clutch at clutch connector.
3. Select meter setting for ohm reading.
4. Connect meter leads to clutch.
5. Check meter reading and refer to the chart
below for correct clutch resistance reading.
(values are @ 68°F.)
If reading falls in acceptable range proceed
to step 2, if not replace the clutch.
Figure 5
Resistance Measurement
Table 1
Resistance
Torque
at 70˚ F
Model
(ft.-lb.) Nom. Nm
(ohms) ±5%
MS-60
60
81
7.18
MS-80
80
108
3.68
TG2K-125
125
169
2.84
CMS-150
150
203
2.47
CMS-175
175
237
2.30
CMS-200
200
271
1.84
Note: If bench tested with 12 volts applied,
armature may not pull away from brakepoles.
Rotational motion is required to engage clutch.
Figure 6
Voltage Measurement
Meter
Meter
Step 2. Measure the supply voltage at the clutch
(See Figure 6)
1. Turn engine off.
2. Connect meter leads at the clutch connector.
3. Select meter setting for voltage reading.
4. Make sure wires will not become entangled
in rotating components of clutch.
5. Start engine and engage PTO switch.
6. Measure voltage across the leads at
the connectors.
7. Voltage should be 12-14 volts DC. If clutch
still fails to operate, replace clutch.
8. If voltage is not within 12-14 volt range
consult EOM’s service manual.