F−1031, Section 4209
Page 2 of 7
Rev: 01/03/07
Installing Ball Bearings
Most Waterous pumps are designed so that ball bearings fit tightly on their
shafts and have relatively loose fits in the bearing housings. When mount-
ing these bearings on shafts, always apply force to the inner races. When
bearings have a tight fit in the housings, and a heavy force is necessary to
install them, be sure to apply force only to the outer bearing races. For
either type of fit, applying force to the wrong bearing race may damage the
balls and race.
Installing Body Gaskets
To provide added sealing for gaskets between body halves, or between
bodies and intake adapters, coat both sides of these gaskets with a suit-
able sealant. A compound such as Permatex Super 300 is recommended
for this application. Be sure all traces of previous gaskets and sealant are
removed before installing new gaskets.
General Description
The CX series pumps are single stage centrifugal pumps. The combination
of single−stage design and vertically−split volute and pump transmission pro-
vide a simple to operate, easy to maintain pump. The use of heavy duty
gears, bearings and shafts provides longer, more trouble−free service and a
high reserve capacity. CX pumps are available with five transmission op-
tions, most providing pump−and−roll performance, in addition to its unique
mounting. The pump may be driven from engine crankshaft (front mounted),
power take−off driven, or direct engine driven (bellhousing mounted). Using
the “KC” style transmission, the CX provides easy access to water supply
when drafting and in hydrant operation. In addition, front mounted pumps
allow easy maintenance and repair.
Disassembly
A CX Series pump may be disassembled in several ways, depending on
the type of transmission used, the piping arrangement and similar factors.
The following instructions offer one of several means of removing and dis-
assembling a CX pump.
1.
Disconnect drain lines, electrical wiring and similar connections to pump
and transmission.
2.
Drain lubricant from transmission.
3.
Disconnect propeller or drive shaft(s) from transmission.
4.
Remove hex hd bolts (B5) and lock washers (B6) attaching suction
adapter (B7) to volute body (B3). Separate the adapter from the body and
replace O−ring (B8).
NOTE: On pumps with F, K or T transmissions, separating pump
head with transmission attached from the volute body might be
easier than the separation described below, space permitting.
5.
Remove impeller nut (S13) and with a puller, remove impeller (S10). Also
remove key (S12). (Three puller holes in impeller have 1/4−20 NC thread.)
6.
Packing: Loosen unbalanced nuts (S4) and remove packing gland (S6),
if used.
Mechanical Seal: Lubricate impeller shaft & slide bellows assembly
from impeller shaft. Seal can also be removed when removing head
(B2) from pump transmission. Remove stationary ring from pump
head.
7.
Remove hex hd bolts (B5) and lock washer (B6) attaching volute body
(B3) to head (B2). Slide volute body carefully from head.
8.
Remove hex hd bolts attaching head (B2) to pump transmission. Slide
head (B2) from impeller shaft.
9.
Removing impeller shaft from transmission is not necessary unless it is
damaged. If impeller shaft removal is necessary, see the appropriate
transmission overhaul instructions.
