TM 5-2420-230-24-1
Spicer Speciality Axle Division - Technical Publications
SERVICE INSTRUCTIONS FOR REAR DRIVE TYPE 1S HUB UNIT
WITH KIRKSTALL 151/2" x 6" BRAKE
DESCRIPTION
The hub gears are driven by a floating sun gear splined to the drive shaft. The sun gear mates with
three planet wheels mounted on a robust carrier which is bolted onto the hub (20). The annulus is of two
piece variety, splined to axle stub (55), also supporting outer hub bearing (71 & 71A). The hub is fully
floating, running on taper roller bearings which are adjusted by means of a special split nut (16) with
pinch bolt arrangement. Brakes can be of Kirkstall or proprietary manufacture which can be serviced
without disturbing hub. Brake drums are made of a special alloy cast iron, carried on outside of hub
flanges.
TOOLING LIST
Spring balance to read to 50lbs
Magnetic dial indicator.
2off 7/16"UNF x11/2" long extractor bolt
3 off 1/2" UNF x 1 1/2" long extractor bolt
E316 - brake cam bush bumper
E317 - hub outer bearing cup bumper
E320 - brake shoe bush bumper
E321 - bumper handle
E398 - hub oil seal wear sleeve bumper
E399 - hub bearing nut spanner
E414 - cam oil seal bumper
E544 - hub inner bearing cup bumper
E552 - hub oil seal bumper (1st)
E553 - hub oil seal bumper (2nd)
Page No.D2
Manual No. 1785 Issue A
Spicer Speciality Axle Division
J-94
