7
7.
Ensure all lubrication/cooling circulation
harness assemblies are clear of any
obstructions.
8.
EBSRAY recommends replacement of all
Gaskets, Seals and O-Rings at every overhaul,
to ensure positive sealing.
4.6
REASSEMBLY
(Refer Drawing - Section 7)
TORQUE SETTINGS – Std Bracket
Model Body
to Bracket
Cover
to Body
BPV Housing
to Cover
MD100
30Nm
13Nm
10Nm
MD114
30Nm
13Nm
10Nm
MD112
30Nm
21Nm
10Nm
MD200
30Nm
21Nm 10Nm
MD212
30Nm 21Nm 13Nm
Note: During reassembly, lubrication is required in
some areas. All lubrication in areas where it may
come into contact with pumped product should be
with a product compatible lubricant. The Bracket Ball
Bearing and Seals may be lubricated with any high
quality lithium base grease suitable for the operating
conditions.
1.
Apply a suitable sealant (e.g. Loctite) to the Inner
Rotor Pin bore in the cover.
Ensure any excess
sealant is cleaned off exposed faces
.
Press Inner
Rotor Pin into Cover ensuring lubrication groove
points centrally towards crescent and adequate
support is given around the Inner Rotor Pin bore
boss when pressure is applied.
Note:
For jacketed cover, pre-assemble jacket to cover
with new gasket and ensure correct positioning using
bolts in opposite mounting holes and/or studs in bypass
mounting holes.
2.
Place Inner Rotor Pin Washer over Inner Rotor Pin
and lock Inner Rotor Pin Nut securely whilst
maintaining lubrication groove location. Note: Use
of a split clamp will aid this operation.
3.
Fit Body to Bracket with Gasket between faces.
Maintain correct inlet and discharge port
orientation, securely tighten in a uniform manner.
4.
Insert Rotor/Shaft assembly ensuring Rotor Bearing
is lubricated.
5. Fit Inner Rotor over Inner Rotor Pin in Cover
assembly with projecting side (if fitted) towards
Cover; ensure Inner Rotor Pin Bearing is lubricated.
6.
Fit Cover assembly to Body with Gasket between
faces, make sure the seal land of the Cover
matches with the seal land in the pump Body. (This
seal land is diametrally opposite the centre of the
Cover crescent). Lubricate pump elements through
pump port and check that Rotor/Shaft assembly
turns freely.
......For pumps fitted with carbon bearings:
6A. Lubricate and Fit O-Ring to Extraction Washer.
Slide Extraction Washer along Shaft until seated
against Rotor Bearing.
......For pumps fitted with EBSRAY mechanical seals:
7A. Slide Circlip along Shaft ensuring gap in Circlip
lines up with access hole. Take care to avoid
scratching Shaft.
7B. Slide Circlip Retainer along Shaft until located
against Circlip (a suitable tube may help keep drive
screw inline with access hole), tighten Drivescrew.
7C. Insert Spring, Drivewasher, Rotating O-Ring,
Rotating Face, Stationary Face fitted with
Stationary O-Ring and lock into position with
Mechanical Seal Plate.
Note:
Particular care must be taken to avoid
contamination of lapped seal surfaces by any foreign
matter. All parts should be lubricated before assembly
and Drivepins must be located during assembly.
Mechanical Seal Plate must be fastened evenly.
......For pumps fitted with packed glands:
7A. Place Packing rings in position in accordance with
normal packing procedures, positioning Lantern
Ring in line with access hole. For standard square
Packing with one Lantern Ring, use eight (7) rings
of 9.5mm square Packing. For other types of
packing refer to suppliers instructions.
7B. Position Gland Plate and tighten by hand only.
Final adjustment is carried out during operation of
pump. Packed glands, when adjusted correctly are
designed to have a very small amount of seepage.
If packing is too tight it will generate excessive heat,
if too loose it will leak excessively.
8. Replace lubrication/cooling circulation harness
assemblies if fitted.
9.
If fitted, reinstall Bypass Valve – Refer Section 5.
Note:
The Bypass Valve Adjusting Screw is oriented
towards the suction port
Note:
Use of suitable tools will assist the next steps
10. Lubricate Bracket Ball Bearing. Fit bearing to Race
Carrier and screw Outer Lockring into Race Carrier
until home. Tighten the Grubscrew to lock the Outer
Lockring against the outer ring of the bearing.
11. Lubricate both Lip Seals
12. Screw Race Carrier into Bracket and drive Bearing
into position against shaft shoulder. To assist
movement, bearing should only be tapped on by
using a drift on its inner ring. Do NOT tap on the
face of the Outer Lockring as this could damage the
bearing.
13. Slide Spacer over shaft and through Lip Seal in
Outer Lockring.
14. Fit coupling key and coupling, lock onto Shaft with
Shaft Setscrew and Shaft Washer.
Содержание MD Series
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