OG3:7
RT655 Operator’s Guide
Johnston Sweepers Limited
Chapter - Operation
Page Issue A
Blocked Pick-up Head or Suction Duct
If it is apparent that the pick-up head is not lifting debris it may be that it is blocked or that
the body is full.
1. With the machine stationary and the suction still operative on the pick-up head, raise and lower
the pick-up head and see if the blockage clears.
2. If still blocked, switch off the engine(s), open the body rear access door and check that the filter
screen is clear and that the body is not full.
3. If the screen is blocked, clean it and providing the body is not full return the machine to service
and check the pick-up head performance.
4. If the body is over half full the machine should be emptied at the nearest waste site.
5. If the screen is clear, the body less than half not full and debris is still not being picked up, it
may be that the pick-up head trunking or inlet tube is blocked.
6.
With the vehicle on level ground carefully raise the body and rest it on the body prop, ensure the
prop has located against the locking step on the subframe. Raising the body higher than necessary
for the prop to engage may affect the vehicle’s stability due to the load moving within the body.
Switch off the engine(s). (Note: Do not tip the body when full with the rear door closed as the vehicle
stability could be effected.)
7. Inspect the pick-up head trunking and inlet tube. Using a suitable size broom handle or rod clear
any debris. When the ducts are clear, restart engines, lower the body and return the machine
to service.
N.B. Adequate use of the water jets, especially on the head, lubricates the hoses and ducts and
helps reduce blockages.
Sharp objects warning - there can be a risk of injury from sharp objects such
as discarded hypodermic needles becoming lodged in the sweeping system.
The use of ‘needle stick gloves’ is recommended when changing brushes,
using the Wanderhose/Littasnatch and when cleaning out the machine.
Safety Notice
