Flush Control; Nozzle Controls; Flow Control; Lever Type Flow Control - Task Force Tips G-Force Instructions For Safe Operation And Maintenance

4.4 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 selector ring out of fl ush to continue normal operations.
WARNING

5.0 NOZZLE CONTROLS

Nozzle control valves must be opened slowly to eliminate unnecessary strain on the hose and couplings and reduce pressure
surges.
Nozzles attached to an in-service hose shall be stored in the off position.

5.1 FLOW CONTROL

5.1.1 LEVER TYPE FLOW CONTROL

On models that use a lever type valve handle, the nozzle is shut
off when the handle is fully forward. The valve handle has 5
detented fl ow positions. These detent positions allow the nozzle
operator to regulate the fl ow of the nozzle depending on the need
or what can be safely and effectively handled. TFT recommends
the use of a pistol grip for easier handling. For additional stress
reduction, a hose rope or strap may also be used. This permits
more effective use and ease of advancement, while minimizing
strain and fatigue.

5.1.2 TIP ONLY

Tip only nozzles have NO shut-off valve within the nozzle and
MUST be used with a separate ball valve attached to the nozzle.

5.1.3 BALL SHUT OFF

A separate ball valve for use with Tip Only nozzles is shut off
when the valve handle is fully forward. Pulling back on the handle
opens the valve. Open valve slowly to avoid sudden changes
in nozzle reaction. Close valve slowly to prevent water hammer.
Note: In partially open positions a ball valve will cause turbulence
and adversely affect stream quality. Nozzles attached to an in-
service hose shall be stored in the off position.
©Copyright Task Force Tips, Inc. 2011-2014
Large amounts or pieces of debris may be unfl ushable and can reduce the fl ow of the nozzle
resulting 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.
ON OFF
ON OFF
ON OFF
6
LIG-010 June 19, 2014 Rev03