For 6800 and 6900 (excludes 6860, 6880, 6885, 6993, 6998 and 6999) series canister vacuum cleaners
A belt in good condition will turn the brush roll efficiently, providing stronger beating and sweeping action. Belts will age and wear with normal use and should be checked periodically for cracks, cuts, or loss of tension.
For optimum performance, replace belt at least every 12 months.