Reelmaster 6500-D/6700-D
Page 5 - 32
Electrical System (Rev. C)
Engine Low Oil Pressure Switch
Theswitch is normallyclosed (NC) andopens with pres-
sure.
The switch opens at approximately 8 psi.
1. Turnignition key switchON. Oilpressure lampshould
be on.
If lamp is not on:
1. Disconnect wire fromswitch and touch wireto a good
ground, such as the engine block.
2. If lamp comes on, replace switch.
3. If lamp does not come on check wiring between lamp
and switch for continuity.
If lamp is on with engine running:
1. Shut off engine immediately.
2. Check switch b y disconnecting wire with ignition
switch in ON position. Light should go out.
Figure 41
(shown with muffler removed)
1
1. Engine oil low pressure switch
3. If light is still on, check for short circuit in wiring.
4. Install test gauge in engine oil pressure switch port.
Start engine andcheck for 30 psi minimumat 1500 rpm.
If engine pressure is good, replace switch. If engine
pressure is low, DO NOT operate the engine.
Speedometer Sensor
Thesensor islocated on therightside frontwheel motor.
It uses a magnetically biased Hall Effect integrated cir-
cuit. As the wheel motor turns in the planetary drive, the
sensor accurately senses the movement of the wheel
motor pistons passing by the sensor. The red connector
wire is the positive lead, the black wire is the ground
lead, and the gray wire is the signal output.
This sensor can be tested using the “Input Checks” fea-
ture of the ACE Diagnostic tool. Connect the diagnostic
tool and rock the traction unit back and forth. The trac-
tion speed LED on the diagnostic tool should blink On
and Off.
IMPORTANT: When replacing the sensor, see
SpeedometerSensorReplacementinthissectionof
this manual.
1
Figure 42
1. Speedometer sensor
