Johnston VT651 - End of Day Cleaning; Cold Weather Precautions

Chapter - Operation
Page Issue 01
OG
3:6
V Range 501 ● 651 ● 801 - Operator’s Guide
To avoid the possibility of frost damage to the water system when the machine is left during cold
weather, it is essential to drain the system adequately. In order to assist this process the machine
is equipped with an automated Pressadrain feature. This feature is accessed via the JVM menu
following the on screen instructions the system will automatically purge the water system with air,
displacing any surplus water.
1. Drain the water tank.
2. Start both the chassis and auxiliary engines.
3. Operate the low pressure water and Supawash (if fitted) open the manual taps for
the Supawash spraybars.
4. Raise the body and engage the body prop.
The Supawash pump will stop when the low level water LED illuminates.
5. Close the manual taps for the Supawash.
Using JVM
Select Main Menu (4)
Select Service Menu (11)
Select Pressadrain Menu (6)
6. Follow the on screen instructions.
7. Open the washdown hose and purge the water from the hose and close (machines
without Supawash only).
8. Open the Wanderhose/Littasnatch water injection valves, if fitted, and close when
the water has been purged.
9. Operate the Supawash hand lance until air is emitted from the jet.
10. Operate each Supawash spraybar in turn. When air has emitted from each bar turn
off. Turn off the Pressadrain, Supawash and stop the auxiliary engine.
11. Remove the red drain plug from the secondary water filter.
Note: Refit the red drain plug and turn off all the Supawash taps before using the machine.
The machine is designed for operating between -15°C and 46°C.
●Aftertheloadhasbeendischarged,lowerthebodytorestontheprop
●AwarninglightontheJVMilluminatesandaaudiblewarningwillsoundwhenthe
body is not fully lowered or the rear door is not closed correctly
●Do not direct high pressure washdown equipment, directly onto the engine, or
ancillary electronic or electrical control systems, care should also be taken when
washingthepaintwork.
●TheuseofNeedlestickglovesisrecommendedwhenworkingwiththisequipment
Safety Notice
END OF DAY CLEANING
Safety Notice
COLD WEATHER PRECAUTIONS
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