Max Machinery 121 INDICATOR - Manual (Page 54)

Pg 54 121-000-350 © 2001 Max Machinery, Inc.
8.3 Internal Fuse Replacement
Instructions:
1. Make sure you follow proper E.S.D. Precautions. All persons performing this replacement must follow proper
grounding procedures.
2. Turn the power to the unit off.
3. Disconnect the two piece connector rear terminal block, leaving all connections in place.
4. Remove the unit from the panel.
5. Remove the four machine screws (see fig. 1) which hold the two sections of the case together.
6. The rear section of the case should detach from the rest of the case. It may be necessary two cut the wiring
label along the joint where the two sections connect. With the rear section of the case removed the fuse will be
exposed (located near the rear terminal, AC connection).
7. Locate the Fuse F1 (see fig. 2) and unplug the fuse from its socket.
8. Insert the new fuse into the socket. Insure that the pins are fully inserted and straight.
9. Reassemble the case and install the four machine screws which join the two sections of the case.
10. Reinstall the unit into the panel.
11. Reconnect the rear terminal block.
12. Turn the unit back on.
Fuse Specifications:
110 VAC Power: 160mA/250V, TD Wickman 19372-030-k or equivalent
220 VAC Power: 80mA/250V, TD Wickman 19372-026-k or equivalent
12/24 VDC Power: 800mA/250V, TD Wickman 19374-046-k or equivalent
FUSE
fuse
Screws
(4 places)
Fig. 1 Fig. 2