Warner Electric Autogap 500 - Manual (Page 3)

3 Warner Electric • 800-825-9050 P-1381 • 819-0112
Step 8
Draw drive pins up tightly until shoulder of pin is against
face of armature boss, (since threads are class No. 3
fit. pins may seem to bind). Note:
Rotate tightening of
drive pins tightening each drive pin a few turns at a
time.
Step 9
Compress one of the armatures and armature hub
together until the armature hub bottoms on the
armature boss. On each pin, slide the retainer down
tightly against the armature hub. Turn the assembly
over and repeat this procedure for remaining armature.
Note: This position must not be disturbed
during completion of assembly.
Machining Instructions for Gear,
Sprocket, or Pulley
3.356
± .001
Chordal 3.875 ± .001
Bolt Circle
.3665 ± .0005 Dia. 5/16 - 24 UNF - 3A
Threads
7/8 1/16
1-3/8
As in the case of a clutch, the customer may wish to
mount the armature to his pulley, hub, etc. These
dimensions must be followed for adaptation to the
armature.
1. The chordal dimension must be held for all chords
between pin holes.
2. Sleeve bearings (Oilite Bronze) must be provided in
the holes of pulley or hub with an I.D. of .376 ±
.001 at the chordal and bolt circle dimensions
shown above.
3. The drive pins must be square with plane of
mounting surface and magnet within .006 T.l.R.
Our standard armature hub may also be used for the
mounting of a gear, sprocket or pulley.
Step 10
Slide the assembly with taperlock bushing over the shaft.
Place the face of the armature approximately 1/32'’ from
the brake magnet face and fix the taperlock bushing to
the shaft.
Step 11
Place the clutch magnet approximately 1/32" from the
armature face, and tighten the taperlock bushing to the
shaft. The unit should then be checked for concentricity
and squareness to the shaft by means of a dial indicator.
The unit should be concentric to the shaft within .010
T.l.R. and square to the shaft within .006 T.l.R. With the
previous steps followed, the autogap will maintain
automatic adjustment for wear throughout the life of the
unit.