Spicer Drive Axles Service Manual

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INTRODUCTION The Spicer driver-controlled differential lock provides exceptional traction and pulling power in both slippery driving conditions and heavy-duty applications. Such applications include: pulling double trailers, construction, and refuse collection. In adverse road conditions, the Spicer driver-controlled differential lock also protects against spin-out and shock loading. The differential lock is activated by a cab-mounted switch. The lock operates through an air-actuated shift assembly that is located on the right-side of the differential carrier. When the differential lock is engaged, an airactuated piston moves the clutch collar along splines of the axle shaft onto mated splines of the differential case. See See See F FFigur F igur igure igure e 11 12. 11 2. 2. Ring Ring and and Pinion Pinion Gears Gears Axle Axle Housing Housing Differ Differential Differ Differential ential Gears Gears DRIVER DRIVER CONTROLLED CONTROLLED DIFFERENTIAL DIFFERENTIAL LOCK LOCK DIFFERENTIAL LOCK IDENTIFICATION Figur igur igure igur e 1 112 1 24 When the differential case and clutch collar splines are engaged, the wheel differential is positively locked. The shift fork trips an electric switch unit that signals a cab indiactor light for driver verification. There is no differential action between the rear drive wheels of the axle when the differential is positively locked, resulting in maximum traction to the rear drive wheels. Normal differential action occurs between the rear drive wheels of the axle when the differential lock is disengaged. The cab-mounted indicator light should be off at this time. Electric Electric Switch Switch Switch Unit Unit Differ Differential Differ ential Ca Case Ca Ca se Half Half Vehicle ehicle ehicle Air Air Supply Supply Inlet Inlet Inlet Pist Piston Pist on Plugged Plugged Hole Hole Hole (F (For (F or Manual Manual Eng Engagement) Eng agement) Spline Splines Spline Right Right Right-Side Right Right -Side Axle Axle Shaft Shaft Shift Shift F FFork F ork Clutch Clutch Collar Collar (Eng (Engaged) (Eng (Eng aged)
DRIVER DRIVER DRIVER CONTROLLED CONTROLLED CONTROLLED DIFFERENTIAL DIFFERENTIAL DIFFERENTIAL LOCK LOCK COMPONENTS COMPONENTS Double Splined Axle Shaft (Diff.-Lock Side Only) Adjusting Ring Lock Bolt (20 - 30 Lb-Ft) (27 - 41 N-m) Air Shift Cylinder Bolt (30 - 40 Lb-Ft) (41 - 54 N-m) Adjusting Ring Lock Piston Assembly Air Shift Cylinder Washer Adjusting Ring Clutch Collar Shift Fork Shaft Roll Pin Air Shift Cylinder Plug (20 - 30 Lb-Ft) (27 - 41 N-m) Axle Housing Assembly Differential Bearing Cone Differential Bearing Cup Shift Fork Shaft Differential Bearing Cap 25 Shift Fork Roll Pin Shift Fork Splined Differential Case Half Spring Electric Switch Unit (20 - 30 Lb-Ft) (27 - 41 N-m) Carrier Assembly
Page 1: Spicer ® Drive Axles Service Manua
Page 4 and 5: All axle assemblies are identified
Page 6 and 7: To ensure proper lubrication and op
Page 8 and 9: Adjusting Ring Lock Temperature Sen
Page 10 and 11: IMPOR IMPORTANT IMPOR ANT ANT: ANT
Page 12 and 13: Differential Bearing Cone Different
Page 14 and 15: Carrier Housing Pilot Bearing Pinio
Page 16 and 17: Carrier Housing Pilot Bearing Pinio
Page 18 and 19: 12. 2. Me Method Me thod B: B: To m
Page 20 and 21: 18 PINION PINION SETTING SETTING CH
Page 22 and 23: 1. 1. Install ring gear and differe
Page 24 and 25: 1. 1. Thoroughly clean the inside o
Page 28 and 29: REMOVE AXLE SHAFTS BEFORE TOWING If
Page 30 and 31: NO NO NOTE: NO TE: Bolt Bolt mm mus
Page 32 and 33: AIR PRESSURE METHOD 1. Install the
Page 34: ORDER ORDER ORDER NUMBER NUMBER ILL

Spicer Drive Axles Service Manual

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