Task Force Tips ThunderFog Series Manual Download

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©Copyright Task Force Tips LLC 2002 - 2020

LKF-100 January 22, 2020 Rev20

5.2.2 FLUSH CONTROL

Small debris passes may get caught inside the nozzle. This trapped material will cause poor stream quality, shortened reach, and
reduced

ow. To remove small debris, the nozzle may be

ushed as follows:

• While still

owing water, rotate the index ring counterclockwise (as viewed from behind the nozzle) to the Flush setting. This

will open the nozzle allowing debris to pass through.

• During

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

ush position to retain control of the nozzle.

• Rotate the index ring out of

ush to continue normal operations.

WARNING

Large amounts or pieces of debris may be un

ushable and can reduce the

ow of the nozzle

resulting in an ine

ﬀ

ective

ow. In the event of a blockage, it may be necessary to retreat to a safe

area, uncouple the nozzle and remove debris.

5.2.3 SHUTOFF SETTING (TIP-ONLY MODELS)

On Tip Only models, the index ring has a shuto

ﬀ

setting to stop the nozzle

ow. To shut o

ﬀ

the nozzle, rotate the index ring clockwise

(as seen from the operating position behind the nozzle) into the “OFF” position. Rotate counterclockwise into a

ow setting to open

the nozzle.

5.3 PATTERN CONTROL

TFT’s nozzles have full pattern control from straight stream to wide fog. Turning the stream shaper clockwise (as seen from the
operating position behind the nozzle) moves the shaper to the straight stream position. Turning the shaper counterclockwise will
result in an increasingly wider pattern.
Since the stream trim point varies with

ow, the stream should be “trimmed” after changing the

ow to obtain the straightest and

farthest reaching stream. To properly trim the stream,

rst open the pattern to narrow fog. Then close the stream to parallel to give

maximum reach.

Note: Turning the shaper further forward will cause stream crossover and reduce the e

ﬀ

ective reach of the

nozzle.

The nozzle reaction is greatest when the shaper is in the straight stream position. The nozzle operator must be prepared for a change
in reaction as the pattern is changed.
Care must be taken to avoid dents or nicks in the nozzle tip because they can seriously a

ﬀ

ect the stream reach.

5.4 QUADRACUP NOZZLES

The QuadraCup nozzle is capable of producing aspirated foam as well as conventional straight stream and wide protective fog
patterns. The QuadraCup functions just like the QuadraFog nozzle when the aspirating sleeve is in the retracted position.
To use the aspirating feature of the QuadraCup, slide the aspirating sleeve portion of the nozzle forward. Rotation of the shaper while
the sleeve is extended provides the nozzle operator control of reach and aspiration. If an immediate wide protective fog pattern is
needed, the sleeve can be retracted instantly to its regular position.

5.0 NOZZLE CONTROLS
5.1 FLOW CONTROL

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 o

ﬀ

position

5.1.1 LEVER TYPE FLOW CONTROL (BALL VALVE)

Models with a ball valve are shut o

ﬀ

when the valve handle is fully forward. Pulling back on the handle opens the valve. 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 e

ﬀ

ective use and ease of advancement, while minimizing strain and fatigue.

Note: In partially open positions, a ball

valve will cause turbulence and adversely a

ﬀ