Replace
Replace
Replace the
the
the Hose
Hose
Hose
Remove
Remove
Remove the
the
the Hose
Hose
Hose
1.
Follow the
Pressure Relief Procedure, page 10
.
2.
Follow the steps
under
, and
Remove the Front Cover, page 10
3.
The roller must be moved to remove the hose.
Follow the directions for your pump to move the
roller between the 4- and 8-o'clock positions
while pulling on the hose at the bottom until the
hose is free from the roller.
a.
AC
AC
AC Models:
Models:
Models: Loosen the screws and remove
the motor fan cover (FC). Turn the fan by
hand to move the roller.
NOTE:
NOTE:
NOTE: Low RPM pumps and high ratio
gearboxes may require many turns of the
motor fan to move the roller.
b.
BLDC
BLDC
BLDC Models:
Models:
Models:
i.
Insert the shaft socket tool (59) into the
back of the gearbox.
ii.
Use a socket wrench to move the roller.
iii. Remove the socket from the gearbox.
4.
Use a wrench to remove the four nuts (35) from
the hose barb assembly on one port. Pull the
hose so it extends about 2–3 in. (51–76 mm)
out of the pump. Remove the nuts (35) from the
barb assembly on the other port, and pull the
hose so it extends about 2–3 in. (51–76 mm) out
of the pump.
Pump Model
Wrench size
ST6
,
ST10
,
ST23
, and
ST25FG
10 mm
ST26
,
ST30
, and
ST32
13 mm
5.
Use a 7mm wrench or a flat-headed screwdriver
to loosen the hose clamps (24).
6.
Pull the barb assembly off of the hose on one
side, then remove, the gasket (25) and clamp
(24).
7.
Grasp the hose (14) from the inside of the pump
housing and pull it into the pump housing and
out of the front. Drain the hose contents into a
bucket.
8.
Remove the second barb assembly, the gasket
(25) and the clamp (24).
9.
Pull the other end of the hose into the pump
housing and out of the front.
10. Remove and safely discard the used hose per
your facility’s waste disposal policy. Wipe clean
the inside of the pump housing.
NOTE:
NOTE:
NOTE: To continue with disassembly, see
. If you are replacing the
hose, continue with the next section.
Figure 2 Remove or Install the Hose
3A3367K
11
