Introduction - Edwards E2M28 Instruction Manual

1

Introduction

The mass of the pump is 44 kg; Use suitable lifting equipment to move the pump. If you do not,
you can injure yourself or damage the pump.
These instructions apply to the Clean and Overhaul Kits and Blade Kit for Hydrocarbon filled rotary pumps and PFPE
(Fomblin) filled pumps. When ordering or installing these kits care must be taken to ensure that the correct clean
and overhaul kit is used. Due to the more aggressive nature of Fomblin lubricants it is essential that only the Fomblin
kit is only used on PFPE prepared pumps. Failure to do so could result in damage to the pump or cause injury to
people.
The Blade Kit is compatible for use in both Hydrocarbon and PFPE filled pumps.
PFPE (Fomblin) oil has different properties from other pumps, therefore:
Take additional care if you suspect that the pump (and hence the PFPE oil) has overheated.
Do not touch or inhale the thermal breakdown products of PFPE oil, which may be present, if the pump has
been heated to 260 °C and above. PFPE oils are safe in normal use but can decompose into very dangerous
substances if they are heated to 260 °C and above. The pump may have overheated if it was misused, if it
malfunctioned, or if it was in a fire. Material Safety Data Sheets for PFPE oils used in the pump are available
on request: contact your supplier or Edwards.
If you fill your PFPE-prepared EM pump with Fomblin oil, we recommend that you regularly check for oil
leaks, particularly around the shaft seals.
If you detect an oil leak, contact your supplier or Edwards for advice.
Never mix Hydrocarbon and PFPE lubricants.
Never use Hydrocarbon lubricants in a PFPE-prepared pump.
We recommend that you use all the items in the Clean and Overhaul Kit when you service the pump,
particularly all rubber components. The items supplied in the kit are listed in
illustrated in Figure 1
and packed in separate bags to aid identification.
Use a Blade Kit together with a Clean and Overhaul Kit when you must replace rotary pump blades. You must
renew all blade assembly items with those supplied in the Blade Kit. The items supplied in the Blade Kit are
listed in Table 3. These items are illustrated in
Section 5.
© Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
CAUTION
to 3. Instructions for the use of the kit are given in
Figure
Table 1
Section
1. Instructions for the use of the Blade Kit are given in
A373-01-840 Issue J
and 2. These items are
3. Kit items are grouped
Page 1