Chapter - Operation
Page Issue 01
OG
3:3
V Range 501 ● 651 ● 801 - Operator’s Guide
Johnston Sweepers Limited
VT - Twin Engine
2 Start Auxiliary engine - Increase engine speed up to 1200 rev/min.
VS - Single Engine
2. Engage the Hydrodrive - ‘H’ lamp illuminates.
Select the 1:1 gear of the chassis gearbox.
Switch on the sweeper ignition to Increase engine speed up to 1100 rev/min.
Note: The engine speed will only increase if the correct gear has been selected.
VS - Single Engine
Note: In addition to the above.
Activating the Nozzle automatically engages the Suction Fan.
5. Gutter Sprays:
Pressing the switch located on the door control activates the corresponding gutter spray.
6. Commence Sweeping:
Select the lowest gear to give a road speed between 2-8 mph (2 to 12 km/h).
Always use the slowest brush and engine speeds consistent with satisfactory cleaning.
Normal engine operating speeds between 1200 - 1500 rev/min.
VT - Twin Engine
Note: Activating the Nozzle automatically opens/closes the respective intake Flap.The
top segment of the switches activates the water and illuminates the LED above the
switch.
TO COMMENCE SWEEPING
1 Start Chassis engine. Ensure the low air pressure warning lamp is extinguished.
VT - Twin Engine
7. Eco Mode Override
Enables the engine speed to be increase to maximum 2000 rev/min for when arduous
sweeping conditions are encountered.
VS - Single Engine
7. Eco Mode Override
Enables the Fan speed to be increase to maximum rev/min for when arduous sweeping
conditions are encountered.
3. Selecting The Hand Of Sweep:
Within the JVM the equipment specification has been factory set.
Dual Sweep Machines Without Simultaneous Sweep Option:
The equipment can only be set to operate on either the Left or Right Hand side.
The selected side of sweep is indicated by the illumination of the appropriate switch
located on the centre console. To change the hand of sweep select the side that is
not illuminated
Dual Sweep Machines Featuring Simultaneous Sweeping Option:
For Single Sweep Operation:
The equipment can be set to operate on either side IE: L/Hand or R/Hand. To change
the hand of sweep first select the side that is not illuminated before de-selecting the
other side.
For Simultaneous Sweep Operation:
Select the side that is not illuminated, both sides will now be illuminated indicating the
Simultaneous sweep mode.
4. Activating the Sweeping Equipment - Door Controller:
Pressing the corresponding symbol activates the equipment to its sweeping position,
the symbol is displayed on the screen.
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