154
Freedom 38 PPA
Service Manual
809010
5 – Generator and Engine Components
4.
Place a wrench on the compressor’s pulley
(rear of the unit). Have another person rotate the engine slowly with
the wrench to align each diode with the cutout on the bearing housing
. Turn the wrench toward the engine side.
Figure 81
5.
Unsolder the wire from the diode’s tab. Remove the diode using a deep socket wrench.
There are 3 forward and 3 reverse diode types. Make sure to replace with the proper
type.
6.
Rotate the engine to align the varistor with the cutout on the bearing housing. Remove the varistor.
Install the generator rectifiers
1.
Smear Dow
®
Corning
®
340 heatsink compound (or equivalent heatsink compound) on the underside of the
replacement diode.
Do not apply heatsink compound to the threads.
Install the new diode and torque from
20.7 – 24.16 kg∙cm (17.97 – 21 inch∙pounds). Solder the wire to the diode’s tab. Make sure there are no loose wire
ends.
2.
Repeat for each diode, then replace the varistor. The varistor is secured with 2 screws.
3.
Reconnect the generator’s plastic cover and secure with screws.
4.
Replace the front panel. See
2
3
2
3
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 ...