American-Lincoln 6150, Instructions For Use Manual

Page: 30 / 138

30 - FORM NO. 56041704 American-Lincoln
6150
SWEEPING SYSTEM SERVICE
MAIN BROOM
To prevent the broom from “setting” in one direction and to provide the maximum life of the broom it is
recommended that the broom be turned end for end periodically.
TO CHECK THE MAIN BROOM SWEEP PATTERN
Check the main broom sweep pattern after changing the broom or when poor sweeping performance is
encountered while sweeping.
1. While the machine is not moving, lower the main broom to the “SWEEP” position and let machine sweep
in one spot for a short period of time.
2. Before moving machine, raise main broom lever to the “UP” position and move the sweeper forward
enough to see the pattern left by the main broom bristles on the fl oor.
3. Check the width of the pattern on the fl oor to determine if the main broom requires adjustment.
-A normal sweep pattern left on the fl oor will be between 1 and 2 inches wide.
-A pattern that is more than 2 inches wide indicates the broom linkage needs to be adjusted “UP”
-A pattern that is less than 1 inch wide indicates the broom linkage needs to be adjusted “DOWN”
TO ADJUST THE MAIN BROOM HEIGHT
When changing the sweep height adjustment it is recommended that the bolt be adjusted 1 turn at a time,
After adjustment, re-check the sweep pattern to determine if further adjustment is necessary.
-Turn the adjustment knob counter-clockwise to INCREASE the sweep pattern width.
-Turn the adjustment knob clockwise to DECREASE the sweep pattern width.
TO REPLACE THE MAIN BROOM
The Main Broom should be replaced when the bristles become worn to less than 2”. The main broom is held
in place by the right side broom door. This feature provides for easy removal and installation of the main
broom without the need for special tools or equipment. Follow the instructions below for main broom removal
& replacement.
1. Park sweeper on a smooth level surface, engage parking brake, turn key switch “OFF”, place the main
broom lever in the “SWEEP” position.
2. Lift the door latch to open the right side broom door.
3. Swing the broom drive idler hub out to clear the main broom.
4. Remove the broom from the broom compartment.
5. Install the replacement broom. Pay special attention to the slots on the broom, it may be necessary to
rotate the broom so the tabs on the drive hub align with the slots on the broom.
6. Swing the idler hub to engage the main broom and close the access door. Check the door latch for proper
engagement when closed.
7. Check the Main Broom sweep pattern and adjust as necessary.
MAIN BROOM LEVEL ADJUSTMENT
The main broom level is factory set and should not need adjustment. If the level becomes out of adjustment
and the broom bristle contact pattern is not an even 2” to 3” wide, the broom arm lift frame will need to be
adjusted. The frame is supported by two plates located inside the broom doors. The carriage bolts (part
number 2-00-05187) that secure the plates to the frame will need to be loosened. The frame can then be
leveled and the bolts retightened.
SERVICE INSTRUCTIONS