ZOLL Base Powercharger 4x4, Service Manual

Page: 56 / 75

DISASSEMBLY PROCEDURES
VII-5
2. REMOVING THE MAIN PCB ASSEMBLY
TOOLS REQUIRED:
•
Two (2) No. 1 Phillips head screwdrivers (Extended and Short shaft).
•
Needle Nose Pliers
1. Remove the Base Pan as described on page VII-3.
2. Disconnect Ribbon Cable from Main PCB.
3. Disconnect the PCB Battery Harness (J1) from Main PCB.
4. Disconnect grounding wire at spade (SP1) on Main PCB.
5. Disconnect the PCB Supply Harness (J3) from the Main PCB.
6. Remove two (2) screws securing the Stabilizer Bracket .
7. Remove eight (8) screws securing the Main PCB to the Upper Housing.
8. Remove five (5) screws securing the four (4) resistors and one (1) bridge
rectifier from Heatsink.
9. Before removing the Main PCB, loosen (by slightly twisting) the four (4)
resistors and one (1) bridge rectifier mounted on the heat sink with needle
nose pliers.
10. Remove the complete Main PCB assembly.
INSTALLING THE MAIN PCB ASSEMBLY
TOOLS REQUIRED:
•
No. 1 Phillips head screwdriver
1. Reverse steps 2 through 10 above.
2. Install the Base Pan as described on page VII-3.
NOTE:
•
Screws (above) to be torqued 7-9 inch pounds.