INSTRUCTIONS FOR USE
Micromax™ 17B–20B / 20DC–20DD —
909 5426 000(2)2005-03
13
BRUSH/PAD-HOLDER DECK OR
CYLINDRICAL BRUSHES DECK
REMOVAL/INSTALLATION
Removal
1.
If equipped, empty the water from the tanks (4 and 5,
Fig. G) with the hoses (17 and 18, Fig. C).
2.
Drive the machine on a level ground.
3.
Turn the ignition key (9, Fig. B) to “0” position.
4.
Disconnect the battery connector (25, Fig. C).
5.
Remove the supplied wrench (24, Fig. C) and unscrew
the tank assembly mounting screw (1, Fig. J).
6.
Hold the handlebar (2, Fig. C) and carefully lift the tank
assembly (2, Fig. J).
7.
Disconnect the brushes solution feed hose (19, Fig. J)
from the deck.
8.
Disconnect the motor connector (20, Fig. J).
9.
Remove the two cotter pins (21, Fig. J) with the related
pins and washers.
10. Remove the cotter pin (22, Fig. J) and the related shim.
11. Remove the brush/pad-holder deck (15, Fig. J) or the
cylindrical brushes deck (25).
12. To install one deck or the other, remove the spoiler (31,
Fig. J) or the spoiler (32) by releasing the related inner
retainers.
Installation
13. Install in the reverse order of the removal.
–
With the brush/pad-holder deck (15, Fig. J) installed,
position the fixing block (23, Fig. J) as shown in Fig.
H (1).
–
With the cylindrical brushes deck (25, Fig. J)
installed, position the fixing block (23, Fig. J) as
shown in Fig. I (1).
–
To change the fixing block position, remove the
cotter pin (2, Fig. H) with the related pin (3) and the
washer.
SAFETY FUNCTIONS
The red connector (25, Fig. C) can be used in case of
emergency to stop all the machine functions. If necessary,
remove the connector with the red handle.
TROUBLESHOOTING
(*): 20DD-20DC versions only
For further information consult the Service Manual at the
Advance Service Center.
NOTE
On Micromax™ 20D
D
from serial number
1812290 or Micromax™ 20D
C
from serial
number 1812178, it is possible to install either
a brush/pad-holder deck (9, Fig. C) or a
cylindrical brushes deck (32), according to the
following instructions.
WARNING!
The incorrect positioning of the fixing block
cause the incorrect ground clearance of the
brush/pad-holder or cylindrical brushes deck.
TROUBLE
POSSIBLE CAUSE
Motors do not work; no
warning light turns on
Disconnected battery connector
(25, Fig. C)
Completely discharged batteries
The suction motor does not
start
Blown fuse
Insufficient dirty water suction
Full recovery tank (4, Fig. G)
Clogged suction cage (7, Fig. G) or
stuck closed float
Hose (26, Fig. C) disconnected
from the squeegee
Dirty squeegee (10, Fig. C) or
worn/damaged squeegee blades
Incorrectly closed tank cover, or
damaged gasket (2, Fig. G) or
clogged compensation hole (3, Fig.
G)
Insufficient solution flow to the
brush
Dirty solution filter (2, Fig. F)
Dirty tank (5, Fig. G) (clogged
output hole)
Scoring caused by the
squeegee
Debris under the squeegee blades
Worn, chipped or torn squeegee
blades
Squeegee not balanced with the
knob (12, Fig. C)
Drive does not operate (*)
Disconnected battery connector
(25, Fig. C)
Key (9, Fig. B) in "0" position
Speed governor (11, Fig. B) turned
completely counterclockwise
Blown drive fuse (8, Fig. E)
Electronic board malfunction due to
overload or overheat; wait at least 5
minutes before resetting the system
by turning the key (9, Fig. B)
NOTE
In case of battery charger malfunction, contact
the Advance Service Center.
