F-1031, Section 2109.1
Page 11 of 13
CAUTION
Prolonged dry pump operation or operating a dry
pump at high speeds will reduce the life of the me-
chanical seal.
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
CAUTION
Pump overheating hazard. May cause damage to
the pump.
Circulate enough water through the pump to prevent
overheating. Do not pressurize the pump over the
maximum discharge pressure of the pump.
Mechanical Seal
If a mechanical shaft seal is used, no adjustment is required.
When the pump operates, the water being pumped cools
and lubricates the shaft seal to prevent it from overheating.
Waterous uses a braided graphite fiber, with reinforced
flexible graphite yarns and high purity graphite filament
yarns that appear on the corners as well as throughout
the body of the 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 provide greater tensile
strength.
This type of packing reduces the frictional heat created
between the shaft and the I.D. of the packing. By dissipat-
ing the heat through the cross section of the packing, the
heat is transferred to the packing gland and the pump
body.
structions. Operate the pump, gradually increasing
the discharge pressure until the packing is forced
out of the stuffing box. Pressure in excess of 300
psi (20.7 bar) may be required.
Packing Removal
3. If all the packing is not forced out, it may be neces-
sary to remove the remaining packing by hand, us-
ing a pick or similar device. Waterous has a packing
removal tool (P/N 5782) available for this purpose,
see Figure 8.
4. Replace packing per instructions below.
1.
IL1931
Figure 8. Packing Removal Tool
Truck movement hazard. May cause serious per-
sonal injury.
Stop engine, set the parking brake and chock the
wheels before going under truck to remove packing.
!
WARNING
NOTICE
NOTICE
