Waterous CS Series Operation And Maintenance - page 12
Page 12 of 15
F-1031, Section 2115
Lubrication
Outboard Bearing
(All Models Except CSD and CSH)
The outboard bearing is located at the end of the pump
opposite the drive end of pump.
On pumps built prior to 4/21/2006, add a good quality,
medium consistency, ball bearing grease through the lub‐
rication fitting until it comes out of the relief fitting. Add
grease after every 100 hours of pump operation, or every
six months, whichever comes first.
On pumps built after 4/21/2006, the outboard bearing is
sealed and requires no lubrication.
Inboard and Outboard Bearing
(CSD Pumps Only)
The inboard bearing is located at the drive end of the
pump. The outboard bearing is located on the end oppos‐
ite of the drive end.
Add a good quality, medium consistency, ball bearing
grease through the lubrication fitting until it comes out of the
relief fitting. Add grease after every 100 hours of pump
operation, or every six months, whichever comes first.
Extra Pressure Stage Bearing
(CSH Pumps Only)
For pumps built prior to 11/13/03: The impeller shaft is
supported at the extra pressure stage by a double row,
ball bearing. A fitting permits lubrication of this bearing.
A relief groove, cut in the threads of the lubrication fitting
allows surplus grease to escape without causing excessive
pressure. Add a good quality, medium consistency, ball
bearing grease until it comes out of the relief groove of the
lubrication fitting. Add grease after every 100 hours of
pump operation, or every six months, whichever comes first.
For pumps built after 11/13/03: Lubrication of bearing is
not required as the bearing is a sealed self-lubricating
design. Note that the pumps upgraded in the field to the
sealed self-lubricating design do not require lubrication.
The lube fitting should be plugged when upgraded.
Packing - Braided Flexible Graphite (BFG)
Waterous pumps use braided graphite fiber, with rein‐
forced 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 rein‐
forcement allows 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 seal hous‐
ing.
WARNING
!
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.
Packing Removal
WARNING
!
Rotating Parts Hazard or Unexpected Truck Move‐
ment. May result in serious personal injury or death.
Stop the engine, set parking brake and chock the
wheels before going under the truck to adjust packing or
to check packing gland temperature.
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
rated maximum discharge pressure of the pump.
1.
Remove the unbalanced nuts, flat washers and pack‐
ing gland halves from one end of the pump.
2.
Engage the pump per appropriate operating instruc‐
tions. Operate the pump gradually increasing the dis‐
charge pressure until the packing is forced out of the
stuffing box. Pressure in excess of 300 psi (20.7 bar)
may be required.
3.
If all the packing is not forced out, it may be necessary to
remove the remaining packing by hand, using a pick or
similar device. Waterous has a packing removal tool (P/N
5782) available for this purpose (See Packing Removal
Tool.
4.
Replace packing per instructions below.
Packing Removal Tool
IL1931