Young Intrinsically Safe Wind Monitor Model 05501 - Manual (Page 5)

Page 4
05501LM-90(D)
FLANGE BEARING REPLACEMENT
If anemometer bearings become noisy or wind speed threshold
increases above an acceptable level, bearings may need
replacement. Check anemometer bearing condition using a Model
18310 Propeller Torque Disc. If necessary, bearings are replaced as
follows.
1. REMOVE OLD BEARINGS
a) Unscrew nose cone. Set o-ring aside for later use.
b) Loosen set screw on magnet shaft collar and remove magnet.
c) Slide propeller shaft out of nose cone assembly.
d) Remove front bearing cap which covers front bearing.
e) Remove both front and rear bearings from nose cone assembly.
Insert edge of a pocket knife under bearing flange and lift it out.
2. INSTALL NEW BEARINGS
a) Insert new front and rear bearings into nose cone.
b) Replace front bearing cap.
c) Carefully slide propeller shaft thru bearings.
d) Place magnet on propeller shaft allowing 0.5 mm (0.020")
clearance from rear bearing.
e) Tighten set screw* on magnet shaft collar.
f) Screw nose cone into main housing until o-ring seal is seated.
Be certain threads are properly engaged to avoid cross-
threading.
VERTICAL SHAFT BEARING REPLACEMENT
Vertical shaft bearings are much larger than the anemometer
bearings. Ordinarily, these bearings will require replacement less
frequently than anemometer bearings. Check bearing condition using
a Model 18331 Vane Torque Gauge.
Since this procedure is similar to POTENTIOMETER REPLACEMENT,
only the major steps are listed here.
1. REMOVE MAIN HOUSING.
2. UNSOLDER TRANSDUCER WIRES AND REMOVE TRANSDUCER
ASSEMBLY. Loosen set screws at base of transducer assembly
and remove entire assembly from vertical shaft.
3. REMOVE VERTICAL SHAFT BEARING ROTOR by sliding it up-
ward off vertical shaft.
4. REMOVE OLD VERTICAL BEARINGS AND INSTALL NEW BEAR-
INGS. When inserting new bearings, be careful not to apply pres-
sure to bearing shields.
5. REPLACE VERTICAL SHAFT BEARING ROTOR.
6. REPLACE TRANSDUCER & RECONNECT WIRES.
7. REPLACE MAIN HOUSING.
8. ALIGN VANE.
9. REPLACE NOSE CONE.
WARRANTY
This product is warranted to be free of defects in materials and construction
for a period of 12 months from date of initial purchase. Liability is limited
to repair or replacement of defective item. A copy of the warranty policy
may be obtained from R. M. Young Company.
CE COMPLIANCE
This product has been tested and shown to comply with European CE
requirements for the EMC Directive (see Declaration of Conformity
below). Please note that shielded cable must be used.
Declaration of Conformity
R. M. Young Company
2801 Aero Park Drive
Traverse City, MI 49686 USA
Model 05501LM
The undersigned hereby declares on behalf of R. M.
Young Company that the above-referenced product, to
which this declaration relates, is in conformity with the
provisions of:
Council Directive 2004/108/EC (December 15, 2004)
on Electromagnetic Compatibility
David Poinsett
R&D Manager