Main Broom Maintenance - Nilfisk SW8000 Mode D'emploi

A-14 / ENGLISH

MAIN BROOM MAINTENANCE

Since the Main Broom Motor always turns in the same direction, the bristles on the broom eventually become curved, reducing sweeping
performance. Sweeping performance can be improved by removing the broom and turning it around (end-for-end). This procedure, known as
"rotating" the main broom, should be done once every 15 hours of operation. NOTE: This procedure does not apply to the optional chevron
broom.
The main broom should be replaced for optimal performance when the bristles are worn to a length of 2 inches (5.08 cm). The Main Broom Adjust
Knob (C) must be re-adjusted when the broom is replaced.
NOTE: The machine should be stored with the Main Broom in the raised position.
WARNING!
The engine must not be running when performing this procedure.
CAUTION!
Brooms can be sharp. Wear gloves to protect your hands.
To Rotate or Replace the Main Broom...
1 Turn the Ignition Switch (TT) OFF.
2 Put the Main Broom Lever (B) in the UP position.
3 Open the Right Side Main Broom Access Panel (18).
4 See Figure 1. Pivot the Idler Arm Assembly (A1) out of the main broom core. NOTE: The Idler Arm is held in place by the Right Side Main
Broom Access Panel (18).
5 Pull the Main Broom (A2) out of the broom housing and remove any string or wire wrapped around it. Also inspect the skirts at the front, back
and sides of the broom housing. The skirts should be replaced or adjusted if they are torn or worn to a height of more than 1/4 inch (6.35
mm) off the ground.
6 Turn the broom around (end-for-end) and slide it back into the broom housing. Make sure that the lugs on the broom core (left side) engage
the slots in the broom drive hub and that the broom is fully seated.
7 Swing the idler arm assembly back into the broom core. NOTE: Make sure the lugs on the idler arm engage the slots in the broom core
8 Close and latch the Right Side Main Broom Access Panel (18).
To Adjust the Main Broom Height...
1 Drive the machine to an area with a level À oor and set the parking brake.
2 Pull the Main Broom Lever (B) back and slide to the right and up to lower the main broom. DO NOT move the machine.
3 Lightly press the FWD / REV Drive Pedal (G) to start the main broom and repeat three times. This allows the broom to polish a "strip" on the
À oor. Raise the broom, release the parking brake and move the machine so that the polished strip is visible.
4 Inspect the polished strip on the À oor. If the strip is less than 2 inches (5.08 cm) or more than 3 inches (7.62cm) wide, the broom needs to be
adjusted.
5 To adjust, loosen the Knob (C) and slide forward or backward to lower or raise the Main Broom. The farther the Lever (B) travels forward in
the slot, the lower the Main Broom will be. Tighten Knob (C) after adjusting the position of the stop bracket.
6 Repeat steps 1-5 until the polished strip is 2-3 inches (5.08-7.62cm) wide.
The width of the polished strip should be the same at both ends of the broom. If the strip is tapered, move the machine to a different area
and repeat steps 1-5. If the polished strip is still tapered, contact your Nil¿ sk Dealer for service.
A-14 - FORM NO. 56091188 - SW8000 4/2015