TM 5-2420-230-24-1
Spicer Speciality Axle Division - Technical Publications
SERVICE INSTRUCTIONS FOR STEER DRIVE TYPE 1S HUB UNIT
(WITH KIRKSTALL 151/2" x 6" BRAKE)
DESCRIPTION
Drive is transmitted to the hubs by a D.B.M. type universal joint, the outer drive shaft being splined to a
floating sun gear. The sun gear mates with three planet gears carried in a robust carrier bolted to the
hub. The annulus is a two piece variety splined to axle stub; it also serves to support the outer hub
bearing. The hubs are mounted on fully floating taper roller bearings and use two single lip oil seals to
stop ingress of dirt and prevent oil leakage into brake drum. The axle stub is bolted to a steering head,
supported by a taper roller bearing at the bottom and plain bush at the top, which is bolted to the axle
casing.
Note :-
On dismantling, clean all parts (except brake drum and brake liners) in paraffin or other
suitable cleaning agent and place on clean work surface.
TOOLING LIST
TOOLING LIST
Light hydraulic / hand press ( U.J. unit assembly)
Spring balance to read to 50lbs
Magnetic dial indicator
2 off 7/16" UNF x 1 1/2" L extractor bolt
3 off 1/2" UNF x 1 1/2" L extractor bolt
2 off 1/2" UNF x 2 1/2" L 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
E405 - extractor equipment for swivel bearing cone
E412 - U.J. shaft bush bumper
E414 - brake cam oil seal bumper
E422 - U.J. shaft oil seal protection sleeve
E442 - U.J. support tool
E443 - Axle stub oil seal bumper
E467 - U.J. extraction toolE544 - inner hub bearing cup bumper
E545 - swivel jaw bearing cup bumper
E546 - swivel jaw bush bumper
E547 - swivel oil seal bumper
E548 - U.J. shaft oil seal bumper
E549 - U.J. shaft bearing bumper
E550 - swivel stub bush bumper
E551 - swivel oil seal bumper
E552 - hub oil seal bumper (1st seal)
E553 - hub oil seal bumper (2nd seal)
E557 - Punch tool (U.J. unit dismantling)
E558 - Rest (U.J. unit dismantling)
E559 - Metal ring (U.J. unit dismantling)
E560 - Extractor & screw (U.J. unit dismantling)
E562 - Drift for U.J. unit assembly
E567 - Swivel dirt excluder bumper
E568 - Swivel jaw dirt excluder bumper
Spicer Speciality Axle Division
Manual No. 1785 Issue A
Page No.B2
J-32