Operational Checkout Procedure TM2361 (24JUN08) 9005-10-7 450DLC Excavator Operation and Tests 062608 PN=223 Windshield Wiper Controls Check 5—Work Light Switch 6—Windshield Wiper and Washer Switch NOTE: Front window must be fully closed and latched for this check. Turn wiper switch (6) to first INT position. LOOK: Does wiper operate intermittently? TX1000880 –UN–01DEC05 Turn wiper switch to second INT position. LOOK: Does wiper operate intermittently, but faster than when in first position? Turn wiper switch to third INT position. LOOK: Does wiper operate intermittently, but faster than when in second position? Turn wiper switch to ON position. LOOK: Does wiper operate continuously?
Move wiper switch to OFF position. LOOK: Does wiper arm stop in park position at left side of windshield? YES: Go to next check. NO: Check that front window is fully latched and switch contacts make good contact. NO: Check windshield wiper and washer 10 A fuse (F2) (Marked WIPER). See Fuse and Relay Specifications. (Group 9015-10.) NO: Check Wiring See Cab Harness W1 Wiring Diagram. (Group 9015-10.) And See Windshield Wiper and Washer Circuit Theory of Operation. (Group 9015-15.) – – –1/1 9005 10 7 Windshield Washer and Wiper Circuit Check IMPORTANT: Washer motor may be damaged if washer switch is held for more than 20 seconds, or continually operated with no fluid in the washer fluid tank.
NOTE: The wiper cannot operate with the upper front window open. The washer can operate with the upper front window open. When closing window, check that window upper left corner makes good contact with the cab. 5—Work Light Switch 6—Windshield Wiper and Washer Switch NOTE: Front window must be fully closed and latched for this check. Push washer switch (6). LOOK: Is washer fluid supplied to windshield? TX1000880 –UN–01DEC05 Turn windshield wiper (6) ON. LISTEN: Does wiper circuit click? LOOK: Does windshield wiper operate? YES: Go to next check. NO: Check washer fluid level. See Windshield Washer Fluid Level. (Operator’s Manual.) NO:
Check that the window upper left corner is making good contact with the cab. NO: Check windshield wiper and washer 10 A fuse (F2) (Marked WIPER). See Fuse and Relay Specifications. (Group 9015-10.) NO: Check wiring harness. See Cab Harness (W1) Wiring Diagram. (Group 9015-10.) NO: Check washer pump. See Windshield Wiper and Washer Circuit Theory of Operation. (Group 9015-15.) – – –1/1