BOC Edwards 18B4B, Инструкция по эксплуатации, Страница: 32 / 62

Issue A Feb 04
PAGE
26
18B4B Vapour Booster Pumps
IN
STALLATION
26
3.12 Filling procedure
3.12.1 Introduction
The general procedure to fill the pump with fluid is
given in Section 3.12.2.
However, if your pump has an optional fluid low
level switch, you must use the procedure in
Section 3.12.3 to adjust the level switch and fill the
pump:
• When you first fill the pump with fluid.
• If the level switch has been removed from the
pump, and has then been refitted.
• If you suspect that the level switch needs to
be readjusted.
3.12.2 General filling procedure
Use the best fluid for your application. The pump is
tested with AP201 pump fluid and will contain traces
of this fluid when supplied. (If you have ordered the
pump for use with another fluid, the pump will be
tested with the appropriate fluid.) You must refill
the pump with the same type of fluid.
If you want to use a different fluid, you must clean
the pump thoroughly before you fill it with the
different fluid.
Refer to Figure 1. There are two methods of filling
the pump:
Method 1:
1. Ensure that the fluid drain plug (29) is securely
tightened.
2. Pour the required amount of fluid (see
Section 2.4) into a clean container.
3. Loosen the
1
/
2
inch union nut and remove the
dipstick (21) and the ‘O’ ring seal.
4. Pour the fluid through a funnel and into the
pump through the dipstick port, to fill the pump
with fluid.
5. Check the level with the dipstick. Add more
fluid or drain fluid from the pump (refer to
Section 5.5) as necessary.
6. When the fluid level is correct (indicated when
the fluid level is shown on the upper mark on
the dipstick):
• Refit the dipstick (21) and the ‘O’ ring seal.
• Tighten the
1
/
2
inch union nut.
Method 2:
1. Ensure that the fluid drain plug (29) is securely
tightened.
2. Pour the required amount of fluid (see
Section 2.4) into a clean container.
3. Undo and remove the four screws which secure
the cleaning port access lid (11), then remove
the lid from the boiler covers.
4. Undo and remove the M10 nuts which secure
the cleaning port cover (10), then remove the
cover and gasket from the boiler. Dispose of
the gasket: refer to Section 6.2.
5. Pour the fluid directly into the boiler, through
the cleaning port.
6. Check the level on the dipstick (21): if you use
a torch, you should be able to see the level
marks on the dipstick without having to remove
it from the pump.
7. Add more fluid or drain fluid from the pump
(refer to Section 5.5) as necessary.
8. When the fluid level is correct:
• Refit the cleaning port cover (10) and a new
gasket (available as a spare: see Section 7.3) to
the boiler
• Fit the M10 nuts to secure the cleaning port
cover in place: tighten the nuts to a torque of
26 Nm.
• Refit the cleaning port access lid (11) to the
boiler covers and secure with the four
screws.