Spicer Tandem Drive Axles Service Manual J340-S, J380-S, J400-S, W460-S - Manual (Page 31)

RING GEAR AND PINION TOOTH CONTACT PATTERN
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CORRECT GEAR PATTERNS FOR GLEASON CUT GEARS
HEAVILY LOADED LIGHTLY LOADED
The procedures to the right are to be used to establish proper
gear tooth pattern after assembly of the carrier is complete.
NOTE: If matched sets are being reused, measure and record
backlash before disassembly, and reassemble to the same
backlash. This will match ring and pinion gears to the estab-
lished wear patterns. Hand rolled patterns will cover less area
than the gear pattern established by previous service.
Gleason cut gears and Oerlikon cut gears can be identified by
using the following chart.
NOTE: Tooth contact pattern, on this axle model, can be moved only by adjusting backlash. The contact pattern can be moved in
the direction of heel-to-toe, and toe-to-heel; Depth of the pattern cannot be adjusted. If an acceptable tooth contact pattern
cannot be established within limits of backlash, contact Spicer Service at 1-800-666-8688.
CORRECT GEAR PATTERNS FOR ORLIKON CUT GEARS
HEAVILY LOADED LIGHTLY LOADED
STEP 1. Paint 1/4 ring gear with marking compound on
both the drive and coast side.
STEP 2. Rotate ring gear at least one complete revolution in
both directions while load is being applied.
J Model W Model
Gleason 047GX1XX XXXXXXC1
XXXXXXR1
Oerlikon ------ 057GX2XX
Example: Gleason cut Wmodel, 584282C1.