DUST DETECTOR OPERATIONAL TEST (sheet 2 of 3)
Make sure area around vehicle is clear of personnel and equipment
before performing step 5.
5. Start engine. apply vehicle brakes. Put transmission lever in high gear. Operate engine
at 1800-1900 rpm for no more than 30 seconds. Observe powerplant warning light (E) and
dust detector warning light (F).
If powerplant and dust detector warning lights (E, F) light, system is operational; go
to step 6.
B. If powerplant and dust detector warning lights (E, F) do not light, check to see if dust
detector switch (G) is tripped. A red plunger, visible through plastic cover on switch (G),
indicates switch (G) has tripped. If switch (G) is tripped, go to troubleshooting symptom
If switch (G) did not trip, repeat step 5 to verify. If switch (G) still does not trip, re-
place dust detector pressure switch (page 7-148 .8)4
6. Stop engine.
7. Using wrench, loosen three screws (C) securing filter strip cover (A) to housing (B) and
remove non-porous material from filter strip (D) and cover (A).
Go on to Sheet 3