Maintenance; Field Lubrication; Service Testing; Flow Testing - Task Force Tips MASTERSTREAM Series Instructions For Installation, Safe Operation And Maintenance

9.0 MAINTENANCE

TFT nozzles are designed and manufactured to be damage resistant and require minimal maintenance. However, as the primary
fi refi ghting tool upon which your life depends, it should be treated accordingly. Do not drop or throw equipment.

9.1 FIELD LUBRICATION

All Task Force Tip nozzles are factory lubricated with high quality silicone grease. This lubricant has excellent washout resistance
and long term performance. If your department has unusually hard or sandy water, the moving parts may be affected. Foam agents
and water additives contain soaps and chemicals that may break down the factory lubrication.
Shaft
The moving parts of the nozzle should be checked on a regular basis for smooth and free operation, and signs of damage. IF THE
NOZZLE IS OPERATING CORRECTLY, THEN NO ADDITIONAL LUBRICATION IS NEEDED. Any nozzle that is not operating
correctly should be immediately removed from service.
For additional information refer to http://www.tft.com/literature/literature.cfm?action=literature
The fi eld use of Break Free CLP (spray or liquid) lubricant will help to restore the smooth and free operation of the nozzle. However,
these lubricants do not have the washout resistance and long-term performance of the silicone grease. Therefore, re-application of
Break Free CLP will be needed on a regular basis. CAUTION: Aerosol lubricants contain solvents that can swell O-Rings if applied
in excess. The swelling can inhibit smooth operation of the moving parts. When used in moderation, as directed, the solvents quickly
evaporate without adversely swelling the O-Rings.

9.2 SERVICE TESTING

In accordance with NFPA 1962 (2013), nozzles must be tested a minimum of annually. Nozzles failing any part of this test must be
removed from service, repaired and retested upon completion of the repair.

9.2.1 FLOW TESTING

Flow testing must be conducted in the following manner.
1. The nozzle shall be mounted so that the fl ow rate and pressure through the nozzle and the pressure at the inlet can be
accurately measured.
2. With the shut off fully open, the inlet pressure shall be adjusted to the rated pressure ±2 percent.
3. The valve or shut off and pattern controls shall be operated through their full range of motion at 100 psi (6.9 bar or 690 kPa)
with no signs of leaking, binding or other problems.
4. Evaluate the fl ow of nozzles as defi ned by NFPA 1964 in the following manner:
Basic Spray Nozzles shall fl ow no less than and no more than 10 percent over the rated fl ow at the rated pressure in the
straight stream and wide-angle fog settings.
Constant and Selectable Gallonage Nozzles shall fl ow no less than and no more than 10 percent over the rated fl ow at the
rated pressure at each predetermined fl ow selection.
Automatic (Constant Pressure) Spray Nozzles
1. The fl ow rate shall slowly be increased to the maximum rated fl ow, and the minimum and maximum pressures
through the fl ow range recorded.
2. Nozzles shall maintain their rated pressure ±15 psi (±1 bar or ±100 kPa) throughout the rated fl ow range.
NFPA 1962: Standard for the care, use, inspection, service testing, and replacement of fi re hose, couplings, nozzles and fi re hose appliances. (2013 ed., Section 5.3).
Quincy, MA: National Fire Protection Agency.
©Copyright Task Force Tips, Inc. 2015
Lube I.D.
O-Ring
Lube
Figure 9.1 - Master stream 1250 Front End Parts
Return
Spring
Cylinder
14
Lube
Pressure
Control Unit
Subassembly
LIM-045 September 15, 2015 Rev00