Override Handwheels; Recommended Stowing Position; Flows And Pressures; Stacked Tips Flow And Reach - Task Force Tips MONSOON Instructions For Installation, Safe Operation And Maintenance

6.2.6 OVERRIDE HANDWHEELS

In the event of electrical system failure on the monitor or fire truck
the Monsoon Monitor is factory supplied with handwheels or knobs
so the monitor may be manually operated. The factory supplied
handwheels are 6 inches in diameter. To make the Monsoon RC
more compact the manual override handwheels may be removed.
The drive shafts have a hex so a wrench or socket may be used for
manual override. Each drive shaft also has a secondary hex at
midshaft so the shaft may be shortened by cutting and still have a
wrenching hex. The wrenching hexes are shown in figure 6.2.3.

6.3 RECOMMENDED STOWING POSITION

For truck mounted applications it is recommended that the monitor
be stowed in a position such that the monitor's nozzle rests against
a bracket or support surface. If a support surface is not available,
run the elevation against one of its travel stops to take some of the
backlash out of the gear drive. This will minimize bouncing of the
nozzle when the apparatus is traveling. Always be sure the
monitor is properly stowed before moving the truck and know the
overall height to avoid damage from overhead obstructions such
as doors or bridges.

6.4 FLOWS AND PRESSURES

6.4.1 STACKED TIPS FLOW AND REACH

Integral Stream
Straightener
Nozzle
Diameter Flow
(inches) GPM
2 840
2.25 1060
2.5 1310
2.75 1590
Nozzle 3.5
Diameter Flow
(MM) l/min
50 3180
57 4010
64 4960
70 6020
©Copyright Task Force Tips, Inc. 2004-2005
2-3/4" 2-1/2"
Fig 6.4.1A
Stacked Tip Model YST-4NN
Nozzle Pressure (PSI)
50 60
Reaction Flow Reaction Flow
lbf GPM lbf
310 920 380
400 1170 480
490 1440 590
590 1740 710
Nozzle Pressure (BAR)
4.1
Reaction Flow Reaction Flow
kg l/min kg
140 3480 170
180 4430 220
220 5450 270
270 6590 320
FIG 6.4.1B
Stacked Tip Flow Table
2-1/4" 2" Protective Cap
80 100
Reaction Flow Reaction
GPM lbf GPM
1060 500 1190
1350 640 1500
1660 790 1860
2010 950 -----
5.5
Reaction Flow Reaction
l/min kg l/min
4010 230 4500
5110 290 5680
6280 360 7040
7610 430 -----
29
Fig 6.2.3
Wrenching Hexes on Drive Shafts
Remove cap and install
smaller tips if desired.
Such as Model #MST-4NJ
(1-3/8", 1-1/2", 1-3/4", 2")
lbf
14.5 psi
630
1 gpm = 3.785 l/min
790
980
-----
7
kg
290
360
450
-----
LIY-200 September 14, 2005 Rev02
= 1 bar