500XOPTRS 30 2008
C. Look under the pick-up head and inspect the blast orifice curtain for excessive
wear or damage. Also, check for any debris jammed in the orifice opening such
as rocks, cans or sticks.
D. Inspect the pressure and suction hoses on either side of the sweeper for wear
holes or damage. A temporary field fix can be made using duct tape to patch
holes until a new tube is installed. Failure to repair or replace worn hoses will
result in excessively dusty sweeping conditions.
E. At least once a week the pick-up head pressure inlet turning vanes should be
inspected for blockage and wear.
F. Check the pick-up head drag links to make sure they are not bent or damaged,
repair or replace before using sweeper.
G. Inspect the pick-up head upstops for damage and repair or replace immediately.
A damaged upstop can cause sever damage to the truck drive shaft by allowing
the pick-up head to contact the drive shaft when raised.
2. Broom Assist Daily Service
A. The broom assist contact pattern must be checked by the operator before each
shift especially if it has been used extensively. The sweeper should be on a level
surface such as a parking lot or shop floor. Lower the pick-up head and pull the
sweeper forward slightly to fold under the curtains. Throttle up blower. Turn
broom assist on and allow the broom to run for approximately one minute to bur-
nish a pattern onto the pavement. Idle the auxiliary engine RPM, raise the broom
and then the pick-up head and drive sweeper forward so that the pattern can be
checked. The pattern mark should be 1-1/2 to 2 inches wide and fairly even the
full width of the broom.
NOTE:
Do not mistake the blast orifice pattern for the broom pattern.
B. Should the broom pattern be lighter on one end or the other, locate the two pivot
arm springs on top of the broom assist pick-up head (one on each side), back off
the eye bolt of the spring on the light pattern side a few turns but no more than
1/2 inch at a time. Recheck and adjust until pattern is set correctly.
NOTE:
BROOM SHOULD BE ROTATED WEEKLY FOR MAXIMUM BROOM
SERVICE LIFE.
C. Pick-up heads with the broom assist should have the broom inspected daily for
debris wedged between the front of the broom and the blast orifice flange. The
broom should also be inspected for severe coning on either end so that the
broom may be rotated before excessive wear is incurred.
D. At the end of each shift, the operator should clean and wash underneath the
pick-up head and remove any mud build-up. Particular care should be given to
the area around the broom. Thoroughly clean the area between the broom and
back of the blast orifice daily! A build-up of debris and mud in this area can
greatly diminish the effectiveness of the broom assist pick-up head.
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