ZOLL Base Powercharger 4x4, Руководство по обслуживанию

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DISASSEMBLY PROCEDURES
VII-8
3. REMOVING THE HEAT SINK
TOOLS REQUIRED:
•
No. 1 Phillips head screwdriver
•
Adjustable Wrench
1. Remove the Base Pan as shown on page VII-3.
2. Remove the Main PCB as shown on page VII-5.
3. Remove two (2) screws securing the Heat Sink to the Upper Housing.
4. Lift Heat Sink straight out.
5. Remove one (1) screw securing the ground wire to the Heat Sink.
6. Remove the two (2) Heat Sink Mounting Brackets (if necessary).
7. Remove the Heat Sink.
INSTALLING THE HEAT SINK
TOOLS REQUIRED:
•
No. 1 Phillips head screwdriver
1. Reverse steps 2 thru 7 above.
CAUTION: When reconnecting the components to the Heat Sink, check the
following:
•
That there are no burrs, nicks or scratches on the surface of the Heat
Sink, especially where the components will mount.
•
That there are no metal flakes, chips or other debris that might have
attached to the Heat Sink.
•
That the thermal pad is installed and is properly seated.
2. Install the Main PCB as described on Page VII-5.
3. Install the Base Pan as described on Page VII-3.
NOTE:
•
Screws (above) to be torqued 7-9 inch pounds.
•
The two (2) screws securing the Heat Sink Mounting Brackets should be
torqued to 9-10 inch pounds.