Heath Consultants Sure-Lock All Pro - Manual (Page 35)

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positive ends of the batteries (opposite the spring ends) to avoid
damaging the springs.
the batteries into place.
d. Replace the battery access door.
e. Turn on the receiver and verify the correct battery voltage on the
display.
LOW FREQUENCY TRANSMITTER FUSE REPLACEMENT
Transmitter
(High frequency models are not fused)
The Sure-Lock low frequency transmitters contain a 2 amp, 250 volt, 3 AG fast-
blow fuse.
1. Replacement Instructions for Transmitter Fuse-
a. Turn the transmitter upside down and lay the top panel on a soft
surface to prevent damaging the top panel’s surface. Locate the
two end screws of the transmitter that hold the transmitter bottom
in place.
b. Loosen each screw three turns.
c. Lift up and remove the transmitter bottom housing.
d. Completely remove the two end screws.
e. Lift up the internal antenna/battery subassembly and set it down
with its’ antennas face down. The printed circuit board (PCB)
should now be on top.
f. The fuse is located near the edge of the PCB and is marked F1.
Locate and replace the fuse with a 2 amp, 250 volt, 3 AG fast-blow
fuse.
g. Reposition the antenna/battery subassembly onto the top panel and
start the two end screws. DO NOT TIGHTEN.
h. Verify that the cables or harness are not caught between the top
panel and the edge of the housing.
i. Replace the transmitter bottom housing onto the top panel and
tighten the two end screws.
j. Turn the transmitter on and verify the battery level indication and
test on both LO and HI power modes if applicable.
ROUTINE MAINTENANCE OF THE SURE-LOCK
The Sure-lock is a rugged, durable instrument designed and manufactured to
-
ment and should be treated as such.