Gasboy TopKAT Fuel Management System Installation - Manual (Page 90)

Mechanical PCU Option Pump Control EXPMUX CPU Board
Page 84 MDE-4319E TopKAT™ Fuel Management System Installation Manual · August 2008
Pump Control EXPMUX CPU Board
1 Unlock and open the front door of the wall-mounted pump control unit or open the pedestal
access.
2 Ensure that all override switches are in the AUTO position. See Figure 8-8 .
3 Ensure that the AC power and battery switches located in the upper right corner of the power
supply are turned off (down).
4 Loosen the screw for the card cage section, and swing out the card cage.
5 Remove the pump control EXPMUX CPU board ( Figure 8-8 ), located in the rear portion of
the card cage, by pulling the top white tab.
6 Locate the K1 jumper patch and install the jumper. This jumper allows battery voltage to the
RAM. It should be installed for normal operation and removed for storage to prevent battery
discharge.
Figure 8-8: EXPMUX CPU Board
7 Verify if the pump control CPU board switch bank, SB (1 through 4), is set for the proper
address.