September 2012 Page 21
PFM Portable Hydraulic Testers PFM6, PFM6BD, and PFM8
Battery Replacement
All PFM testers utilize four AA size alkaline batteries. These batteries will normally provide approximately 50 hours of service
before a low battery condition is indicated. On the PFM6 and PFM6BD, a LO BAT signal on the display indicates a low battery
condition. On the PFM8, a flashing colon (:) on the display indicates a low battery condition. When a low battery condition has
been displayed, immediately remove discharged batteries from the tester to prevent battery holder corrosion.
To change the batteries, remove the 4 screws on the cover assembly. Pull the cover slowly upward to clear the internal
components. The batteries are located on the bottom of the case. See Figure 9. When installing the new batteries, ensure that
they are centered in the holder and making contact at both ends. Replace the cover and secure the 4 screws.
AA
1.5 VOLTS
CAUTION DO NOT CONNECT IMPROPERLY
CHANGE OR DISPOSE OF IN FIRE. BATTERY
MAY EXPLODE OR LEAK. MADE IN U.S.A.
ALKALINE BATTERY
AA
1.5 VOLTS
CAUTION DO NOT CONNECT IMPROPERLY
CHANGE OR DISPOSE OF IN FIRE. BATTERY
MAY EXPLODE OR LEAK. MADE IN U.S.A.
ALKALINE BATTERY
AA
1.5 VOLTS
CAUTION DO NOT CONNECT IMPROPERLY
CHANGE OR DISPOSE OF IN FIRE. BATTERY
MAY EXPLODE OR LEAK. MADE IN U.S.A.
ALKALINE BATTERY
AA
1.5 VOLTS
CAUTION DO NOT CONNECT IMPROPERLY
CHANGE OR DISPOSE OF IN FIRE. BATTERY
MAY EXPLODE OR LEAK. MADE IN U.S.A.
ALKALINE BATTERY
Figure 9: Battery Replacement
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