Operating Instructions
Progressive Cavity Pump
Pin Joint Assembly
Dokument
document
Blatt
sheet
Datum
date
OM.PJT.02e
1 (3)
B / 27.01.97
1.
Dismantling of Joint
1.1
Holding Band (406, 407) and Universal Joint
Sleeve (405)
Cut through loop (SCL) of the holding bands (406
and 407) with a metal saw.
Wear protective goggles when
squeezing out the two halves of
the holding band loop (SCL).
Remove holding bands (406,407). Pull universal joint
sleeve (405) off joint.
1.2
Retaining Sleeve (401) - Dismantling
- For rotors and plug-in shafts made of hardened
and unhardened materials, knock back
retaining sleeve (401) with tool/chisel (WM).
- For rotors made of synthetic material,
release set screw (426).
1.3
Separation of Joint
Eject coupling rod pin (402). Position coupling
rod (400) at the correct angle (A) and, using tool
(W5/see Point 9), drive both guide bushes (403)
outwards.This releases the coupling rod (400), which
can then be extracted.
CAUTION
To guarantee the proper function of the joints, it
is advisable to renew the coupling rod pins (402),
guide bushes (403) and coupling rod bushes (404)
all at the same time.
1.4
Coupling Rod Bushes (404) - Dismantling
CAUTION
As a precaution against incorrect re-assembly of
coupling rod bushes (404), we recommend the
employment of coupling rods (400) whose coupling
rod bushes (404) have been pressed in by seepex.
The coupling rod bush (404) is pushed out of the
coupling rod (400) with tools (W4 and W14/see Point
9).
2.
Prepare main components for Re-assembly
2.1
Rotor (600) - Preparation for Joint Assembly
First remove any burr, flaws or similar defects from
the rotor, then clean it.
2.2
Coupling Rod (400) - Preparation for the Joint
Assembly
CAUTION
As a precaution against the incorrect re-assembly of
coupling rod bushes (404), we recommend the em-
ployment of coupling rods (400) whose bushes (404)
have been pressed in by seepex.
Press in new coupling rod bushes (404 using tool
(W4) and
(W14/see Point 9).
