WACKER Group LTC 4 - Replacing Glow Plug Relay; Checking Glow Plugs

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Lombardini Engine Troubleshooting LTC Repair

wc_tx000364gb.fm 72

5.11 Checking Glow Plugs

See Graphic: wc_gr002033

5.11.1 Remove the glow plug from the engine.

Burn hazard. Glow plugs can reach temperatures up to 1200°F

(649°C). Do not touch the element of the glow plug. Be extremely

careful when testing the glow plug.

5.11.2 Using 10-gauge wire, apply 12VDC to the glow plug—positive on the

upper portion and ground the base. If the glow plug does not heat

(glow) within five seconds, replace the glow plug.

Note: If any one of the glow plugs needs replacing, replace all of them.

WARNIN