Bulletin TI-H2PEMPD-E
Installation, Operation and Maintenance Manual
Hydrogen Gas Generator H2 PEMPD series
20
1-800-343-4048
www.labgasgenerators.com
5.3.4 Replacing the Water Pump
Lift the upper service panel from the generator as shown in figure 19 and store the panel safely. Remove the two retaining screws
from the top of the front fascia panel. Slide the panel upwards until the locating screws are free from their retaining slots. Carefully
move the panel away from the generator as shown in figure 21. Disconnect the display assembly ribbon cable from the control
board and store the panel safely. Remove the two retaining screws from the top rear cover as shown in figure 22. Remove the
outer heater box being careful of the internal tubing connection. Slide the top rear cover off and store the panel safely as shown in
figure 22.
With the Environmental filters still removed, carefully remove the push in fittings from the water reservoir. Remove the retaining
screws from the back panel as shown in figure 22. Carefully open the back panel allowing it to rest on the cable stop as shown in
figure 23. With the back panel open, carefully disconnect the 4 pin pump connector from the PUMP terminal.
Figure 21
Figure 22
Figure 23
With all the water drained from the water reservoir, place some paper toweling in the bottom of the generator to catch any residual
water within the tubes and water pump. As shown in figure 24, clamp the water pump inlet tube and remove the associated
hardware. Fit the replacement pump and reconnect the wiring and tubing.
