150
Freedom 38 PPA
Service Manual
809010
5 – Generator and Engine Components
Replace the relays
There are 6 relays located within the system. Four relays are located in a housing mounted on the plasma side of the
engine. These relays control the air shutoff to the engine, the preheat plugs and the engine starter motor. The fifth is
mounted behind the front panel and controls the fuel shutoff to the engine. To access the fifth relay the top cover must be
removed. The sixth relay controls the cooling unit fan and is mounted near the air compressor cooling unit.
To replace the fuel shutoff relay see
Replace the fuel shutoff relay
To replace the cooling unit fan relay see
Replace the cooling unit fan relay
Remove engine mounted relay
1.
Turn OFF the system. Make sure the power switch on the front panel is in the OFF (
O
) position.
2.
Remove the plasma side service panel.
3.
Wait for 30 seconds, then disconnect the battery’s negative (-) ground cable.
4.
There are 4 relays mounted on the engine towards the left looking in from the plasma side service panel access.
Remove the required relay by pulling it up and out of the housing.
Figure 77
Install the engine mounted relay
1.
Place the new relay in the appropriate slot in the housing.
2.
Reconnect the negative (-) ground cable to the battery.
3.
Put the plasma side service panel back in place.
Kit number
Description
Kit: Electrical relay, 12 VDC, 40 A
1
2
3
4
1
Preheat 1
2
Preheat 2
3
Crank
4
Air shutoff
Summary of Contents for Freedom 38 PPA
Page 52: ...52 Freedom 38 PPA Service Manual 809010 1 Troubleshooting ...
Page 93: ...Freedom 38 PPA Service Manual 809010 93 3 System Level Components Figure 26 J6 J4 J3 J7 J5 ...
Page 214: ...214 Freedom 38 PPA Service Manual 809010 7 Parts ...
Page 216: ...216 Freedom 38 PPA Service Manual 809010 8 Wiring Diagrams ...
Page 217: ...217 AC wiring diagram AC WIRING DIAGRAM FREEDOM 38 PPA HYPERTHERM ...
Page 218: ...218 12 VDC wiring diagram 12VDC WIRING DIAGRAM FREEDOM 38 PPA HYPERTHERM ...