Idex Hale Sam, Technical Manual

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4.7.4 Gearbox Oil Level
Hale ships the gearbox with all gear oil drained and the gearbox must be filled with the correct
amount of oil prior to operation. When oil covers the tip of the level sensor, the sensor outputs a
+5 VDC signal. If the oil level decreases to uncover the sensor, the sensor actuates internal elec-
tronic switching to output a 0.5 VDC signal which triggers an alert. The sensor (Figure 50) must
NOT be over tightened or the sensor will be damaged. If the sensor continues to indicate a false
low level indication after cleaning the sensor must be replaced.
The three (3) wire sensor connects as listed in Table 35.
Table 35. Gearbox Oil Level Sensor Wiring (From/To Listing)
From (Pin) To
A System Power (CB1)
B Main Ground Stud (On Pump Body)
C Sensor Module / A Connector / Pin 1
Only torque the sensor one turn (maximum) past the hand tight engagement. Over
torqueing the sensor can result in permanent damage to the sensor.
Figure 50. Gearbox Oil Level Sensor
Refer to Table 36 for a list of tools and/or consumables required for this procedure.
Table 36. Gearbox Oil Level Sensor Tools And Consumables List
Standard Tools Special Tools Consumables
PPE (Eye and Hand Protection) None Shop Rag(s) (As Required)
PPE (For Handling Oil) Cable Ties (As Required)
Wire Cutter Loctite 580
7/8-in Wrench Oil Level Sensor
<See FSG-PL-01501/1502, Sheet 4>
Mild Detergent
Gear Oil (Small Amount)