High Temperature Shutdown Switch
The high temperature shutdown switch is located near
the glow plug connection on the engine cylinder head
(Fig. 33). There is a blue wire attached to the switch.
CAUTION
2
Make sure engine is cool before removing the
temperature switch.
1.
Lower coolant level in the engine and remove the
temperature shutdown switch.
1
2.
Put switch in a container of oil with a thermometer
and slowly heat the oil (Fig. 34).
Figure 33
Temp. shutdown switch 2. Glow plug connection
1.
CAUTION
VOA
Handle the hot oil with extreme care to prevent
personal injury or fire.
3.
Check continuity of the switch with a multimeter
(ohms setting). The temperature switch is normally
open and should close between 225o to 235oF (107o to
113
oC).
4.
temperature switch should open at about 219oF
Allow oil to cool while observing temperature. The
Figure 34
(104
oC).
5.
6.
Replace switch if necessary.
Install switch to the water flange.
A. Clean threads of cylinder head and switch thor-
oughly. Apply thread sealant to the threads of the
switch.
B. Screw switch into the cylinder head and tighten.
C. Connect blue wire to switch.
7.
Fill engine cooling system (see Operator’s Manual).
Groundsmaster 4000−D
Page 5 − 23
Electrical System
| Categories | Lawn Mower Manual, Toro Lawn Mower Manual |
|---|---|
| Tags | Toro Groundsmaster 4000 D |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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