Woods Equipment BB84X Vertical Shaft Seal Repair, Horizontal Seal Leak Repair, Gearbox Repair

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SEAL REPAIR

(ON FLAT TOP, BB48X, BB60X, BB72X S/N 1159928 AND BEFORE; BB84X)

(Figure 18)

3.Remove cotter pin, washer, and nut from vertical shaft and remove crossbar (see Crossbar Removal, page 31).

4.Remove the four bolts that attach gearbox to cutter and remove gearbox.

Vertical Shaft Seal Repair

1.Disconnect and remove the rear driveline from the gearbox.

2.Remove vent plug (27) and siphon gear lube from housing through this opening.

3.Remove crossbar (see Crossbar Removal, page 31).

4.Remove vertical shaft seal (21). Replace with new seal (see Seal Installation, page 24).

Vertical seal should be recessed in housing. Hori- zontal seal should be pressed flush with outside of housing.

NOTE: Distortion to seal cage or damage to seal lip will cause seal to leak.

5.Fill gearbox with SAE 80W or 90W gear lube until it runs out the level plug.

6.Remove and replace any seal damaged in installation.

Horizontal Seal Leak Repair

1.Disconnect and remove the rear driveline from the gearbox.

2.Remove vent plug (27) and siphon gear lube from housing through this opening.

3.If the leak occurred at either end of horizontal shaft, remove oil cap (23) and/or oil seal (22). Replace with new one (refer to Seal Installation, page 24).

4.Fill gearbox with SAE 80W or 90W gear lube until it runs out the level plug.

GEARBOX REPAIR

(ON FLAT TOP, BB48X, BB60X, BB72X S/N 1159928 AND BEFORE; BB84X)

(Figure 18)

NOTE: Repair to this gearbox is limited to replacing bearings, seals, and gaskets. Replacing gears, shafts, and a housing is not cost effective. Purchasing a com- plete gearbox is more economical.

Disassemble Gearbox

1.Remove 3/8" plug from side of gearbox and pour out gear oil.

2.Remove oil cap (23) (to be replaced).

3.Remove snap ring (12) and shim (15) from input shaft (3).

4.Support gearbox in hand press and push on input shaft (3) to remove bearing (9) and spacer (14).

5.Remove top cover (25) from housing. Remove gear (1) from inside housing.

6.Remove oil seal (22) from front of housing (to be replaced).

7.Remove snap ring (12) and shim (15) from front of housing (2).

8.Remove input bearing (8) by using a punch and hammer from outside of housing.

9.Support housing in vise in a horizontal position.

10.The castle nut (17), cotter pin (28), washer (18), and hub (24) are already removed with the stump jumper/crossbar. Remove the snap ring (10), washer (19), and seal (21).

11.Remove cotter pin (11), castle nut (16), and washer (20) from output shaft (4).

12.Remove output shaft (4) by using a punch and hammer and tap on top to drive down.

13.Remove gear (5) and shim (15) from inside housing.

14.Remove bearing (7) by using a punch and hammer from the top, outside the housing.

15.Support housing upside down (top cover surface) and remove bearing (6) by using a punch and hammer from the bottom side of the housing.

16.Inspect gears for broken teeth and wear. Some wear is normal and will show on loaded side. Forged gear surfaces are rough when new. Check that wear pattern is smooth.

Remove Gearbox from Cutter

1.Disconnect and remove the rear driveline from the gearbox.

2.Remove vent plug (27) and siphon gear lube from housing through this opening.

17.Inspect vertical and horizontal shafts for grooves, nicks, or bumps in the areas where the seals seat. Resurface any damage with emery cloth.

18.Inspect housing and caps for cracks or other damage.

(Rev. 5/11/2010)

MAN0632 (5/15/2007)

Dealer Service 25

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Contents Brushbulltm To the Dealer IntroductionTo the Owner Table of Contents General Information SpecificationsBB48X BB60X BB72X BB84X Safety Free Mower Safety VideoTraining Package for Rotary Mowers/Cutters-English/Spanish Training Package for Rotary Mowers/Cutters-EnglishWoods Equipment Company Training Safety RulesPreparation OperationMaintenance Storage Serial Number Plate Safety & Instructional DecalsRED Rear Reflector Crushing and Pinching Hazard Be CarefulOperation OperationTractor Stability Attaching Cutter to Tractor BB48X onlyQuick Hitch Attachment BB48X Only Top Link Adjustment BB48X OnlyAttaching Cutter to Tractor BB60X, BB72X, BB84X only Installation and Removal Driveline Tractor PTOShortening Driveline Driveline AttachmentDriveline Interference Check Cutting Height AdjustmentShredding Material Operating Technique Check Chain AdjustmentPRE-OPERATION Check List Owner Service Owner ServiceBlocking Method Lubrication InformationBlade Servicing Blade Installation FigureBlade Removal Figure Blade Sharpening Slip Clutch AdjustmentComer Walterscheid BB84X OnlyModel WalterscheidCleaning Driveline Shear Bolt ReplacementShielding Repair Problem Possible Cause Solution TroubleshootingMowing Conditions Dealer Service Dealer ServiceGearbox Maintenance Seal ReplacementVertical Shaft Seal Repair Seal RepairHorizontal Seal Leak Repair Gearbox RepairReassemble Gearbox Reinstall GearboxBB48X, BB60X, BB72X BB72X S/N 1159929 and Above only On CAST/CROWN TOP BB48X, BB60XReassemble Gearbox Cast Top BB48X Reassemble Gearbox Cast Top BB60X and BB72X Crossbar Removal Crossbar RemovalJoint Disassembly Crossbar InstallationUniversal Joint Repair Install Cups Joint AssemblyDealer Check Lists Dealer Check ListsPRE-DELIVERY Check List Delivery Check ListDealer Check Lists Assembly AssemblyDealer SET-UP Instructions Disassemble Shipping Unit Figure BB60X, BB72X & BB84X Shipping ConfigurationInstall A-FRAME to Diagonal Brace Bars Install A-FRAMEBB48X BB60X, BB72X & BB84XInstall Dual Tailwheel BB84XD Optional Install TailwheelBB48X Standard Hitch Set-Up BB48X Quick Hitch Set-UpBB60X, BB72X & BB84X Standard & Quick Hitch Set-Up Install DrivelineShear Bolt Driveline BB48X & BB60X Only Driveline Slip Clutch Optional on BB48X & BB60XDriveline Slip Clutch BB72X and BB84X Install Safety ShieldingRubber Deflector Standard Fill GearboxBB60X BB72X Install Optional Check ChainsBB84X Parts Parts Index BrushbulltmBB48X, BB60X, BB72X & BB84X BB84X Shown Brushbull STANDARD-DUTY Main AssemblyBB72X, BB84X BB48X, BB60X, BB72X & BB84X Main Assembly Parts ListGearbox repair asy BB72X S/N 1159928 and Below Gearbox Assembly Flat TOPCheck Chain Assembly Optional Gearbox Assembly Parts ListBB48X Gearbox Assembly CAST/CROWN TOP BB48X Comer Standard Driveline Assembly BB60X Comer Standard Driveline Assembly BB48X & BB60X Comer Slip Clutch Driveline Assembly Optional BB72X Comer Slip Clutch Driveline Assembly Series 50 Series BB84X Comer Slip Clutch Driveline AssemblyBB84X Walterscheid Slip Clutch Driveline Assembly Front Rubber Shielding Standard Front & Rear Chain Shielding OptionalSAE Series Torque Chart Bolt Torque ChartAppendix Metric SeriesAbbreviations Bolt Size ChartIndex IndexWarranty Rev /23/2005