26
- FORM NO. 56043098 - Convertamatic
™
24, 26, 28, 32 / BA 625, 725, 825
SCRUB SYSTEM
SCRUB BRUSH DECK REMOVAL (CYLINDRICAL)
1
Lower the scrub deck with brushes (pads) installed. Turn the key switch off and disconnect the battery pack.
2
Lift up and remove cover and nose cone, from front of machine.
3
See Figure 5.
Separate the solution system water line
(U)
located on top of the scrub deck.
4
Unplug both of the brush motor wiring harnesses
(V)
.
NOTE:
Cable ties may need to be cut.
5
Remove the lower Hitch Pin
(W)
that secures the brush deck lift actuator to the scrub deck.
Note:
Lift up on the scrub deck to take pressure off the Pin
(W).
Service Note: It is
important that the actuator motor is not run while it is disconnected from the deck or chassis mounts. This precaution will prevent the actuator drive nut from being
misadjusted (moved out of its set speci
fi
cation).
6
Remove the Cotter Pin
(X)
and washers that attach the Upper Hitch Pin
(Y)
to the machine chassis Linkage Arm
(Z)
.
NOTE:
Reference Con
fi
g (A) or (B) depending on what your
machine looks like.
7
Remove the two
(AA)
Hitch Pins that attach the scrub deck to the machine’s chassis Linkage Arms
(BB)
. Then rotate the Arms
(BB)
out of the way.
8
From the front of the machine swing the lower actuator housing forward to clear the deck mount bracket (remove the actuator on AXP™ / EDS™ models). Then slide the deck
towards the left side of the machine until Pin
(Y) – Con
fi
g A
is clear of Arm
(Z) – Con
fi
g A
or until Arm
(Z) – Con
fi
g B
is clear of the tank bracket. Pull the deck forward away from
the machine to complete the removal.
SERVICE NOTE
: It is important that the actuator motor is not run while it is disconnected from the deck or chassis mounts. This precaution
will prevent the actuator drive nut from being misadjusted (moved out of its set speci
fi
cation).
9
To install a scrub deck, follow the above steps in reverse order.
SCRUB BRUSH MOTOR(S) REMOVAL (CYLINDRICAL)
1
Remove the Belt Guard(s)
(CC)
held in place by (1) screw.
2
Disconnect the defective motor wiring plugs.
3
Remove the 3
(DD)
Screws and slide the motor out.
Note:
The belt can be removed at this time.
4
Reassemble in reverse order.
Note:
The belts are self tensioning no adjustment is needed.
SCRUB BRUSH BELT REPLACEMENT (CYLINDRICAL)
Remove the Belt Guard(s)
1
(CC)
held in place by (1) screw.
Carefully roll the belt off the top Motor Pulley
2
(EE)
.
Reinstall the belt by placing it on the top Motor Pulley
3
(EE)
and carefully roll it onto the Lower Brush Pulley
(FF)
.
NOTE:
Be sure the belt grooves and pulley
grooves match up (Aligned).
SCRUB BRUSH SYSTEM MAINTENANCE (CYLINDRICAL)
The scrubbing system must be serviced at regular intervals to maintain good scrubbing performance. Follow the maintenance steps listed below.
1
Rinse clean, built up debris from the debris hopper drain holes (daily).
2
Clean drain holes in the solution delivery trough on top of the scrub deck (weekly).
3
Clean built up dirt from the inside of the scrub brush housing (weekly).
4
Remove any string wrapped around the scrub brush, drive hub and idler hub (weekly).
5
Remove both the scrub brushes and rotate, turn end for end (weekly). See
Scrub Brush Removal and Installation (Cyl)
section.
6
Inspect the scrub brush bristles for wear, the brushes should be replaced when the bristle length is 1 inch (26mm) or less (monthly).
SCRUB BRUSH REMOVAL AND INSTALLATION (CYLINDRICAL)
1
Make sure the key switch is off and disconnect the battery pack before servicing.
2
Loosen the black knobs (one on each side) that secure the removable bearing idler support Plate
(GG)
to the brush housing, then pull the plates down and out
to remove. Grip the scrub brush and slide it from the housing end.
3
To install the brush slide it into the housing, lift slightly, push and turn until it seats into the drive end assembly.
4
Re-install the idler end plate assemblies.
SCRUB BRUSH LIFT ACTUATOR REMOVAL (CYLINDRICAL)
With scrub brushes installed lower the scrub deck, turn the key off and disconnect the battery pack.
1
Note:
If the lift actuator motor will not run go to step 2 and
perform the following, shim up the brush deck to remove the weight on the lower deck Actuator Pin
(W)
to remove.
Remove the front nose cone by
fi
rmly grasping the lower part and lifting straight up.
2
Disconnect the actuator motor wiring harness pig tail connector.
3
Remove the lower actuator mount pin
4
(W).
Note:
Lift up on the scrub deck to take pressure off the pin
(W).
Remove the Pin
5
(HH)
from the upper actuator mount weldment and remove the motor.
See *Important Service Note below.
6
Reinstall in reverse order.
7
*Important Service Note:
After removing any actuator motor and before installing a new motor or drive nut the IN and OUT limit switches must be set (or checked)
to their correct speci
fi
cations. Reference the Electrical System in this manual for the
Actuator Drive Nut Adjustment
and follow these instructions before replacing
the actuator motor.
After setting the correct actuator nut adjustments for the scrub brush lift motor, follow removal steps in reverse order to reassemble.
revised 7/07
Summary of Contents for BA 625
Page 2: ......
Page 7: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 5 SPECIFICATIONS revised 5 07 ...
Page 25: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 23 FIGURE 2 SCRUB SYSTEM ...
Page 27: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 25 NOTES ...
Page 55: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 53 FIGURE 4 ...
Page 57: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 55 FIGURE 5 ELECTRICAL SYSTEM ...
Page 63: ...FORM NO 56043098 Convertamatic 24 26 28 32 BA 625 725 825 61 FIGURE 6 ELECTRICAL SYSTEM ...
Page 79: ...www nilfisk advance com 2008 ...
