Flush Control; Standard/Low Pressure Knob Mid-Force & Dual-Force - Task Force Tips Mid-Force Instructions For Safe Operation And Maintenance

5.2.2 FLUSH CONTROL

Small debris passes through the debris screen (if equipped) and may get caught inside the nozzle. This trapped material will cause
poor stream quality, shortened reach, and reduced fl ow. To remove small debris, the nozzle may be fl ushed as follows:
• While still fl owing water, rotate the SHAPER counterclockwise (as viewed from
behind the nozzle) to the fl ush position. (increased resistance will be felt on
the SHAPER or RING as the nozzle goes into fl ush) This will open the nozzle
allowing debris to pass through.
• During fl ush the nozzle reaction will decrease as the pattern becomes wider and
the pressure drops. The nozzle operator must be prepared for an increase of
nozzle reaction when returning the nozzle from the fl ush position to retain control
of the nozzle.
• Rotate the SHAPER out of fl ush to continue normal operations.
Large amounts or pieces of debris may be unfl ushable and can reduce the fl ow of the nozzle resulting
WARNING
in an ineffective fl ow. In the event of a blockage, it may be necessary to retreat to a safe area, uncouple
the nozzle and remove debris.
5.3 STANDARD/LOW PRESSURE KNOB MID-FORCE & DUAL-FORCE
For situations where the standard pressure setting at the nozzle is impractical, the MID-FORCE or DUAL-FORCE may be switched
to a low pressure mode. In the low pressure mode the nozzle pressure is reduced by about 50% while maintaining a usable stream
and increasing the fl ow. The nozzle operator must be prepared for a change in reaction when changing modes. See the fl ow chart
in section 4.2 for actual performance.
To switch to the low pressure mode, shut off water fl ow with valve and turn knob at front of nozzle (see fi gure 4) counterclockwise
(when viewed from front). Reopen valve to fl ow water at reduced pressure. Repeat the process, except turn knob clockwise, to return
to standard pressure operation
©Copyright Task Force Tips, Inc. 2002 - 2015
Mid-Force
Knob In
Standard Operating Mode
Mid-Force
Knob In
Low Pressure Mode
19
Dual-Force
Dual-Force
LIN-035 June 16, 2015 Rev15