Check The Oil Level; Replace The Oil; Maintenance Plan - BOC Edwards E1M18 Instruction Manual

F
Operation
PAGE

Check the oil level

24
Replace the pump oil
Inspect and clean the inlet filter
Clean or replace the gas-ballast filter
Clean the motor fan-cover and enclosure
Clean and overhaul the pump
Fit new blades
Test the motor condition
5.3 Check the oil level
Note: If required, you can check the oil-level while the
pump is operating , however you must switch
off the pump and isolate the pump and other
components in the pumping system from the
electrical supply before you pour oil into the
pump.
Refer to Figure 1 for the items in brackets.
1. Check that the oil-level in the oil sight-glass (12)
is between the MAX and MIN level marks on
the bezel of the sight-glass.
2. If the oil-level is near to or below the MIN level
mark, remove the oil filler-plug (1) and pour
more oil into the reservoir until the oil reaches
the MAX level mark. If the oil-level goes above
the MAX mark, remove the oil drain-plug (11)
and drain the excess oil from the pump. Refit
the oil filler-plug.
3. If the oil is contaminated, drain and refill the
pump with clean oil as described in Section 5.4.
Issue J
E1M18 and E2M18 Rotary Vacuum Pumps
As required; at least monthly
Every 3000 hours of operation
Every oil change
Every 15000 hours of operation
Every 30000 hours of operation
Every 15000 hours of operation
Table 9 - Maintenance plan
5.4
Refer to Figure 1 for the items in brackets.
1.
2.
3.
4.
5.
24
Frequency Refer to Section
Yearly
Yearly

Replace the oil

Operate the pump for approximately ten
minutes to warm the oil, then switch off the
pump. (This lowers the viscosity of the oil and
allows the oil to be drained from the pump
more easily).
Isolate the pump from your electrical supply
and disconnect it from your vacuum system.
Remove the oil filler-plug (1).
Place a suitable block under the pump -motor
to tilt the pump and place a suitable container
under the oil drain-plug (gravity drain) (11).
Remove the oil drain-plug and allow the oil to
drain into the container.
If the oil is dirty or contaminated:
• Replace the oil-filler plug and pour clean oil
into the pump.
• Reconnect the pump to the electrical supply
and operate the pump for about 5 to 10
minutes.
• Disconnect the pump from the electrical
supply, remove the oil filler-plug and allow the
oil to drain out of the pump.
• Repeat this step until the oil reservoir is clean.
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
Jun 03