Warner Electric Garden Tractor Clutch - Manual (Page 6)

6
Warner Electric • 800-825-9050 P-1097-6 • 819-0458
Airgap Adjustment
G. Procedure for Airgapping Bearing
Mounted PTO Clutch/Brakes
Airgaps are preset at the factory and do NOT
require initial adjustment.
Bench setting:
1. Remove clutch from tractor.
2 Orient the clutch so it is viewed from the field
side.
3. Locate the three rivet joints in the armature
assembly which fasten the leaf springs to the
armature.
Top View
from Pulley
Armature/Spring
Rivet joints are located
on line with the bearing
stakes.
Airgap
Adjustment
Nuts
Three, equally
spaced, bearing
staking punch marks.
4. Rotate the pulley until these three rivet joints
are located midway along the edge of the
triangular adapter, or halfway between each
stud. This prevents measuring the airgap over
a rivet joint.
5. Do not disturb the orientation of the armature
assembly with respect to the field.
6. Locate the three windows in the brakeplate,
one at each stud.
Figure 16
Positioning Rivet Joints for Airgap Adjustment
Figure 17
Location of Windows — Three Per Brakeplate
Windows
Brakeplate
7. Insert a .012" feeler gauge through each
window, being careful to position the feeler
gauge between the rotor face and the
armature face.
Window
.012" Feeler
Gauge (3)
Required
Adjustment
Nut
Figure 18
Setting the Airgap
8. With all three feeler gauges in place, begin
to alternately tighten each nut an equal
amount.
9. Tighten each nut until the feeler gauges
begin to feel snug. Each gauge should
require an equal amount of force for
insertion and extraction.
10. Remove the feeler gauges. Turn the rotor
assembly to check for rotor/armature drag.
The rotor should turn freely.