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F-1031, Section 2109.1 

Page 13 of 13 

 

Packing Gland and Pump Body Temperature Haz- 
ard. May result in serious burns.

 

Heat is dissipated through the cross-section of the 
packing, transferring the heat to the packing gland 
and pump body. 

WARNING

 

5.  Repeat steps 3 and 4 until the drop rate is 

acceptable. 

Note: After adjusting the packing, the pump must 
pass the following vacuum test described below.

 

 
 
 
 
 

Vacuum Test

 

 

1.  Remove all caps except openings  without valves. 

Close  all  discharge,  intake  and  drain  valves  and 
other similar openings. Operate priming device to 
create  a  vacuum  of  about  22  in.  Hg/.735  atmos- 
phere in pump, then stop primer and engine. 

2.  Watch the pressure gauge; if vacuum drops more 

than  10  in.  Hg/.334  atmospheres  in  five  (5) 
minutes,  listen  for  air  leaks  around  the  packing 
gland, gaskets, valves, etc. 

3.  Replace gaskets, re-adjust packing, repack or oth- 

erwise repair source of trouble. 

4.  Repeat test. 

 

Overheat Protection Manager

 

 

Check the electrical circuit by pressing the test button lo- 
cated on the panel plate every 100 hours of pump opera- 
tion or every six months, whichever comes first. 

If the light does not flash, the light bulb or flasher may 
need replacement (provided all wire connections are 
solid). 

 

 

Butterfly Valve (BFV)

 

 

Operate valve once a week for optimal performance. 

Summary of Contents for CX Series

Page 1: ...ruc tions carefully before using your Waterous Fire Pump Safety Information 2 3 Introduction 4 General Description Components 4 Options 4 5 Operating Instructions Pumping from Water Tank 6 Pumping fro...

Page 2: ...set parking brake and chock the wheels before going under the truck to adjust packing or to check packing gland temperature WARNING Packing Gland and Pump Body Temperature Haz ard May result in seriou...

Page 3: ...the use of a fire department gate valve with a inch 6 mm hole drilled through the gate installed between the fire apparatus discharge outlet and the hose test layout to prevent a volume surge from th...

Page 4: ...ns consistently outwear hard chrome plating tool steel and solid tungsten carbide Zinc die cast screens are normally used in the intake fit tings with brass screens available optionally Although the s...

Page 5: ...F 1031 Section 2109 1 Page 5 of 13 Figure 1 CXN Models 6 in ANSI Flange DIN PN10 150 Flange Figure 2 CXR Models Figure 3 CXSModels Figure 4 CXVModels Figure 5 CXD Models Figure 6 CXSD Models...

Page 6: ...bove zero 5 Set relief valves or other pressure governing de vice to desired pressure After Pumping 1 Open valve s in piping between water tank and pump intake and at least one discharge valve 2 Allow...

Page 7: ...from the water tank Always make sure the intake pressure compound gage reading stays above zero NOTE Some fire departments operate at a minimum intake pressure of 10 psi 7 bar when pumping from hydran...

Page 8: ...alves are closed d Immerse intake strainer at least two feet below water surface to prevent pump from drawing air Whirlpools forming above intake strainer indicate that strainer is too close to surfac...

Page 9: ...hoses the procedures in NFPA 1962 MUST be followed including the use of a fire department gate valve with a inch 6 mm hole drilled through the gate installed between the fire apparatus discharge outl...

Page 10: ...or bolt on flange as described below NOTE The replaceable elements must make contact with water to be effective Do not paint or use any other coating on the replaceable elements Bolt on Anodes Unscrew...

Page 11: ...packing The graphite reinforcement al Packing 1 Remove the unbalanced nuts flat washers and packing gland halves 2 Engage the pump per appropriate operating in lows the flexible graphite yarns to pro...

Page 12: ...ar Leakage through the braided flexible graphite BFG pack ing may be at zero or diminish to zero leakage and may not respond to loosening of the packing nuts to restore leakage see Adjustment Step 3 W...

Page 13: ...ing device to create a vacuum of about 22 in Hg 735 atmos phere in pump then stop primer and engine 2 Watch the pressure gauge if vacuum drops more than 10 in Hg 334 atmospheres in five 5 minutes list...

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