Maintenance Plan; Check The Oil-Level - Edwards RV3 Instruction Manual

A652–01–880 Issue Y
5.2

Maintenance plan

The plan shown in Table 14
use. Instructions for each operation are given in the section shown.
More frequent maintenance may be required if the pump is used to pump corrosive or abrasive gases and vapours,
such as solvents, organic substances and acids; in these circumstances, Edwards recommends replacing the pump
seals every year (refer to Section 7.3
according to prior experience.
When maintaining the RV pump, use Edwards spares and maintenance kits; these contain all of the components
necessary to complete maintenance operations successfully. The Item Numbers of the spares and kits are given in
.
Section 7.3
Operation

Check the oil-level

Replace the oil
Inspect and clean the inlet-filter
Inspect and clean the gas-ballast control
Clean the oil-level sight-glass
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, the oil-level can be checked while the pump is operating. The pump must be switched off and
the pump and other components in the pumping system isolated from the electrical supply before pouring
oil into the pump.
Refer to Figure 1 for the items in brackets.
1. Check that the oil-level in the sight-glass (8) 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 one of the filler-plugs (6) 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
drain-plug (9) and drain the excess oil from the pump. Refit the filler-plug.
3. If the oil is contaminated, drain and refill the pump with clean oil as described in
Page 32
details the routine maintenance operations necessary to maintain RV pumps in normal
for details of available spares). If necessary, adjust the maintenance plan
Table 14 - Maintenance plan
Edwards and the Edwards logo are trade marks of Edwards Limited.
Frequency
Monthly
Every 3000 hours of operation
Yearly
Yearly
Yearly
Yearly
Every 15000 hours of operation
Every 30000 hours of operation
Every 15000 hours of operation
© Edwards Limited 2018. All rights reserved.
Refer to Section
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
Section 5.4.