SyriXus Series Pumps Installation and Operation Guide
Section 9 Pump Maintenance, Troubleshooting, and Servicing
9-21
EAR99 Technology Subject to Restrictions Contained on the Cover Page
4. Loosen the nut until the nut can be turned by hand. Tighten the
nut to finger tight.
5. Torque the castle nut to
100 in-lbs (11.3 N-m)
. Do not repeat
this torque.
6. Insert the cotter pin through the castle nut and ball screw. If the
holes do not line up,
loosen
the castle nut slightly until any set
of holes allow the cotter pin to be inserted.
Caution
Do not loosen the nut more than 30° beyond the torqued position to
align the holes.
7. Reinstall the access cover.
9.14 Motor Brushes
If the pump does not run properly, one possible cause is worn brushes.
Inspect the motor brushes every two years of operation, or every 6,000
piston strokes, whichever comes first. Both brushes wear at approxi-
mately the same rate; therefore, only the top brush, which is more
easily accessible, need be inspected.
The bottom brush is accessed by removing a cover on the bottom of the
pump and extracting the brush through the uncovered opening.
RISK OF ELECTRIC SHOCK - DISCONNECT THE ELEC-
TRIC POWER BEFORE SERVICING. ONLY TRAINED SER-
VICE PERSONNEL MAY REMOVE THE CASE TOP.
RISQUE DE CHOC ÉLECTRIQUE. COUPER L´ALIMENTA-
TION AVANT LA RÉPARATION. L´USAGER NE DOIT PAS
DÉMONTER L´INSTRUMENT OU DÉRANGER LE
MÉCANISME DEDANS. ADRESSER LA REPARATION
SEULEMENT AUX TECHNICIENS COMPÉTENTS.
