Watson-Marlow SP40 - Manual (Page 28)

GENERAL MAINTENANCE
25
7.2 Cleaning pump hose
With a lot of products it is necessary to have the pump
hose cleaned immediately after pumping to avoid
hardening of the product inside. The inside of the pump
hose can be easily cleaned by rinsing the pump with
clean water. If a cleaning fluid is added to the water, it
must be checked that the hose liner material is resistant
to that. Also note that the pump hose can resist the
cleaning temperature. Special cleaning balls are also
available; please consult your Bredel representative.
7.3 Changing lubricant
1. Place a tray under the drain plug (C).
2. Remove the drain plug (C) and collect the
lubricant in the tray.
3. Install the drain plug.
4. Remove the breather cap (A) and position a
funnel in the breather.
5. Pour lubricant in the funnel until the lubricant
level is half way the inspection tube (B).
6. Install the breather cap (A).
7 Changing lubricant. After every 2
nd
hose
change or after 5,000
service hours, whichever
comes first or after hose
rupture.
Refer to section 7.3
8 Replacing pump seal. If necessary. Refer to section 7.7.2
9 Replacing pressing
shoes. When there is visible
wear on the running
surface. Refer to section 7.7.1
10 Replacing bearings. If necessary. Refer to section 7.7.2
Point Action To be carried out Remark
C
B
A
C
B
A