MIRKA MROS125 Notice D'utilisation page 11

the T-13 Bearing Press Sleeve until the front (10) Bearing is
seated in the bearing pocket of the Endplate. CAUTION: Only
press just enough to seat the bearing into the pocket. Over-
pressing can damage the bearing.
4. Place the (8) Key into the groove on the (14 or 42) Motor Shaft
/ Shaft Balancer. Place the Rotor onto the shaft of the (14 or
42) Motor Shaft / Shaft Balancer, making sure that it is a tight
slip fit.
5. Oil the five (7) Vanes with a quality pneumatic tool oil and
place in the slots in the Rotor. Place the (4) Cylinder Assembly
over the Rotor with the shorter end of the Spring Pin engaging
the blind hole in the (9) Front Endplate. Note: The Spring Pin
must project 1.5 mm (.060 in.) above the flanged side of the
Cylinder.
6. Press fit the rear (2) Bearing (2 shields) into the (3) Rear
Endplate with the T-1B Bearing Press Tool (not shown). Make
sure the T-1B Press Tool is centered on the O.D. of the outer
race. Lightly press fit the Rear Endplate and Bearing Assembly
over the (14 or 42) Motor Shaft / Shaft Balancer using the
small end of the T-13 Bearing Press Sleeve. The sleeve should
press only the inner race of the bearing. Important: The Rear
Endplate and Bearing Assembly is pressed correctly when the
Cylinder is squeezed just enough between the Endplates to
stop it from moving freely under its own weight when the shaft
is held horizontal, but be able to slide between the Endplates
with a very light force. If pressed to tightly the motor will not run
freely. If the pressed assembly is to loose, the motor will not
turn freely after assembly in the (19) Housing.
7. Secure the assembly by placing the (1) Retaining Ring in the
groove of the (14 or 42) Motor Shaft / Shaft Balancer. Caution:
The Retaining Ring must be placed so that the middle and two
ends of the hoop touch the Bearing first. Both raised center
portions must be securely "snapped" into the groove in the
Motor Shaft / Shaft Balancer by pushing on the curved portions
with a small screwdriver.
8. Carefully screw the (12) Lock Ring into the (19) Housing using
the (MPA0025) T-6 Motor Lock Ring Wrench. See "Parts Page"
for torque settings. Note: A simple technique to assure first
thread engagement is to turn the Lock Ring counter-clockwise
with the service tool while applying light pressure. You will hear
and feel a click when the lead thread of the Lock Ring drops
into the lead thread of the Housing, then turn clockwise to
tighten.
9a.For 2.5mm orbit machines:
tighten it using a (38) 17 mm Pad Wrench.
9b.For 5.0mm orbit machines:
tighten it.
Testing:
Place 3 drops of quality pneumatic air tool oil directly into the
motor inlet and connect to a 6.2 bar (90 psig) air supply. The tool
should run between 7,500 and 8,500 RPM when the air pressure
is 6.2 bar (90 psig) at the inlet of the tool while the tool is running
at free speed.
* Loctite® is a registered trademark of the Loctite Corp.
DOC A0725 US
Spin on a new (40) Pad and hand
Spin on a new (45) Pad and hand
10
Rev 26/04/13