Tennant 7100, Руководство по обслуживанию

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ELECTRICAL
4-131
7100 330695 (8 − 11)
OPERATION:
TO LOWER THE SQUEEGEE ACTUATOR, THE FOLLOWING CONDITIONS MUST OCCUR:
− VACUUM FAN/SQUEEGEE SYSTEM SELECTED ON THE TOUCH PANEL
− MACHINE IN NEUTRAL OR FORWARD POSITION
− NO ”LOW BATTERY” CONDITION SENSED
− NO ”FULL RECOVERY TANK” CONDITION SENSED
WHILE THE SQUEEGEE ACTUATOR LOWERS OR LIFTS:
− TO LOWER, 27/PUR (P3 − 10) RECEIVES POSITIVE VOLTAGE WHILE 28/GRY (P3 − 15) IS PULSED LOW
− TO LIFT, 28/GRY (P3 − 15) RECEIVES POSITIVE VOLTAGE WHILE 27/PUR (P3 − 10) IS PULSED LOW
SQUEEGEE SYSTEM
DOES MACHINE
POWER UP ?
GO TO POWER −
UP TESTING
SECTION
No
− ARE ANY OF THE FOLLOWING CONDITIONS
TRUE ?
− LOW BATTERY = #1 BATTERY LED BLINKING
− RECOVERY TANK FULL = RED OVERFLOW
LED ON
Yes
CHARGE BATTERIES OR
DRAIN RECOVERY TANK
Yes
READ SQUEEGEE ERROR CODES BY
HOLDING DOWN SQUEEGEE TOUCH
PANEL BUTTON
− ARE THERE ANY SQUEEGEE
OUTPUT ERRORS ?
RUN SELF TEST MODE
1. WHILE HOLDING THE SQUEEGEE BUTTON, TURN THE
KEY TO THE START POSITION AND THEN RELEASE IT.
2. KEEP HOLDING THE SQUEEGEE BUTTON UNTIL SCRUB
PRESSURE LED #3 IS LIT AND THEN RELEASE IT.
3. PRESS AND RELEASE THE SQUEEGEE BUTTON AGAIN
− SQUEEGEE LIGHT FLASHING ?
No
No
SQUEEGEE CIRCUIT BOARD
OUTPUTS TEST GOOD
− DID THE SQUEEGEE LOWER/
RAISE DURING THE SELFTEST ?
Yes
No
MACHINE TESTS
GOOD
Yes
GO TO INPUT TEST MODE
1. TURN THE KEY OFF
2. WHILE HOLDING THE SQUEEGEE BUTTON, TURN THE
KEY TO THE START POSITION AND THEN RELEASE IT.
3. KEEP HOLDING THE SQUEEGEE BUTTON UNTIL SCRUB
PRESSURE LED #3 IS LIT AND THEN RELEASE IT.
4. PRESS AND RELEASE THE SCRUB BUTTON UNTIL BOTH
SCRUB PRESSURE LED’S #2 & #3 ARE ON.
5. PRESS AND RELEASE THE SQUEEGEE BUTTON AGAIN
ARE BATT. LED’S BOTH OFF ?
No
16/BLU (P4 − 12) IS BEING HELD @
GND & 14/YEL (P4 − 6) IS < 0.5V −−
THIS SHOULD ONLY HAPPEN IN
REVERSE −− GO TO PROPEL
SYSTEM TESTING
Yes
No
GO TO MANUAL MODE TO TEST THE LOADS
1. TURN THE KEY OFF
2. WHILE HOLDING THE SQUEEGEE BUTTON, TURN THE
KEY TO THE START POSITION AND THEN RELEASE IT.
3. KEEP HOLDING THE SQUEEGEE BUTTON UNTIL SCRUB
PRESSURE LED #3 IS LIT AND THEN RELEASE IT.
4. PRESS AND RELEASE THE SCRUB BUTTON UNTIL
PRESSURE LED #2 IS ON.
5. PRESS AND RELEASE THE SQUEEGEE BUTTON AGAIN
PRESS THE SQUEEGEE/VAC FAN BUTTON
− DOES THE SQUEEGEE ACTUATOR LOWER ?
Yes
DISCONNECT SQUEEGEE ACTUATOR
IS THERE VOLTAGE BETWEEN 27/PUR &
28/GRY @ SQUEEGEE ACTUATOR ?
Yes
ACTUATOR IS STUCK
− REPLACE ACTUATOR
No
27/PUR OR 28/GRY ARE OPEN
OR THE CONNECTIONS @ THE
ACTUATOR OR THE CONTROL
BOARD ARE BAD
No
IF ERROR = ”NO H − BRIDGE ZERO CURRENT”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #3 LIT)
REPLACE THE CONTROL BOARD
Yes
IF ERROR = ”EARLY SQUEEGEE STALL”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #1 LIT)
− DISCONNECT SQUEEGEE ACTUATOR AND
RETEST
− ERROR STILL EXISTS −− IF 27/PUR OR 28/
GRY ARE NOT SHORTED TO GND, REPLACE
THE CONTROL BOARD
IF ERROR = ”NO SQUEEGEE STALL”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #2 LIT)
27/PUR, 28/GRY OR SQUEEGEE ACTUATOR
ARE OPEN