Disassembly Of The Lip Seals - OMAC B Series Operation And Maintenance Manual

34
Time perfectly the rotors and tighten the
screws of the adjustable gear gradually, che-
cking the rotor timing
35
Tighten completely the adjustable gear
screws taking care of the driving torque (see
par.1.3.6)
N.B. IN CASE OF RE-TIMING IT'S NECES-
SARY TO REPLACE THE PLANE WASHERS,
CAVED BY PREVIOUS CLAMPING
36
Assemble the gear cover, taking care to set the O-ring gasket and insert the key on the shaft. Put into bearing housing the oil quantity as per
chap.1.3.12

5.7.5 Disassembly of the lip seals

ATTENTION
IT IS RACCOMMENDED TO SUBSTITUTE LIP SEALS, IN CASE OF WEAR, TO BADLY AVOID SPILLAGES OF PRODUCT FROM THE PUMPING
CASE AND THE MALFUNCTION OF THE PUMP
PERFORM FIRSTS OPERATIONS
6
IN BOTH CASES OPERATE AS FOLLOWS:
extract the stationary parts of the seals from
rotorcase, after disassembling the retainers
rings
7
after untightening the security dowels, extract
the rotating part of the seal from the shaft
5.7.6 Lip seals assembling
8
Put the O-Ring into the rotating part of the
seal and screw the security dowels
9
Lubricate the shafts before inserting the rota-
ting part of the seals, taking care not to damage
O-Ring.
Be sure the rotating part is on the shoulder of the
shafts and tighten the security dowels.
It is raccommended using a threads-locking glue
to avoid unscrewing during the rotational motion
ATTENZIONE
TAKE CARE OF THE RIGHT POSITIONING OF
THE RETAINER RING, AS FOLLOWS
10
with lip seal type S1 SINTEK H - TPU:
Assemble the stationary part (SINTEK H - TPU
RING)on the pumping case, then assemble the
retainer ring with its hexagonal-head screws
10
Chap.5 - pag.
34
1,2,3,4,5
AS IN THE PAR. 5.8.1, THEN OPERATE AS FOLLOW
6
Lip seal type
HN ELRING
10
with lip seal type HN ELRING: Assemble the stationary part ( l'anello HN Elring) on the
pumping case, then assemble the retainer ring with its hexagonal-head screws
11
Clean carefully the seal slide surfaces and assemble the rotor case delicately, in order not to
damage the seal and be sure it is well set on plugs.
Clamp the front nuts
12
Assemble the rotors, setting them on pitch setting, according to reference marks (1-2). Clamp the
rotor nuts (see chap. 4.5). In order to stop turning, interpose a non metal element between rotors
8
10
Lip seal type S1 Sintek H-TPU
Via Giovanni Falcone, 8 42048 Rubiera (RE) - Italy
E-mail:info@omacpompe.com SitoWeb:www.omacpompe.com
35
6
Lip seal type
S1 Sintek H-TPU
9
11
O.M.A.C. s.r.l.
Tel.0522/629371 - 629923 Fax 0522/628980
Rev.4 del 01/2011 O.M.A.C. s.r.l.
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7
10
Lip seal type HN ELRING
12