Multi Pro 5800Page 6 − 84Electrical System
Throttle Assembly (Gasoline Engines Only)
The throttle assembly used on machines with gasoline
engines is a rotary hall effect sensor. The throttle assem-
bly is located on the Operator control console (Fig. 125).
If an issue occurs with the throttle assembly or its circuit
wiring, an engine fault should appear on the InfoCenter
display and the engine RPM should remain at the low
idle setting no matter the throttle position.
Testing
1. Park machine on a level surface, stop engine and en-
gage parking brake. Remove key from ignition switch.
2. Remove console cover(s) to gain access to throttle
assembly (see Console Assembly in Chapter 9 − Chas-
sis in this manual).
3. Disconnect machine wire harness from throttle as-
sembly.
4. Connect a 5 VDC power supply to throttle assembly
terminals A and C as shown (Fig. 126).
5. Use a multimeter set to DC voltage and connect to
throttle assembly terminals A and B as shown (Fig. 126).
6. The voltage reading on the multimeter should be 0.5
+
0.1 VDC with the throttle lever in the low idle position,
and 4.5 +
0.1 VDC in the high idle position.
7. Replace throttle assembly if necessary.
8. If the throttle assembly tests correctly and a circuit
problem still exists, check the wire harnesses (see Elec-
trical Schematics and Wire Harness Drawings and Dia-
grams in Chapter 11 − Foldout Drawings in this manual).
9. Connect the wire harness connector to the throttle
assembly after testing is complete.
10.Install control console covers (see Console Assemb-
ly in Chapter 9 − Chassis in this manual).
1
2
1. Control console 2. Throttle assembly
Figure 125
1. Throttle assembly
2. Multimeter (DC voltage)
3. DC Power supply
Figure 126
C + A −
5 VDC
0.45
LOW IDLE
POSITION
HIGH IDLE
POSITION
B
+
−
1
2
3
To Next Page
Loading...
