Buhler FK369 manual Mower Deck Belt Adjustment

Page 43

Heavy Duty Finishing Mower

MOWER DECK BELT ADJUSTMENT

Start by removing both belt guards on the mower deck. Loosen the bolts holding the gearbox base plate (#7). Turn the 5/8” hex nuts (#6) on the threaded rod on the base plate until there is enough slack in the belts to slip them off the spindle pulleys. If the belts can be pulled off by sliding them under the large double pulley, no further disassembly is required. If this is difficult, you can create more space by removing the bolts holding on the gearbox mounting plate (#8) in one piece with the gearbox and large pulley. Lift up the mounting plate assembly slightly and slide the belts underneath. When you replace the belts, make sure they are lined up as shown in the drawing. The upper groove in the double pulleys goes around the higher of the single pulleys. The lower grooves of the double pulleys line up with the lower single pulley. Re-tighten the belts so the center of the belt span will deflect about ½” with nominal pressure. Do not forget to tighten the bolts on the gearbox mounting plate.

 

 

MOWER DECK BELT ADJUSTMENT

ITEM PART#

DESCRIPTION

1

912300158

Gearbox Assembly

2

81592

3/8'' Hex Nut (pl)

3

81593

3/8'' Lock Washer (pl)

4

964001

7/16'' ID x 10 Ga Washer (pl)

5

86182

3/8'' x 1 1/4'' Carriage Bolt (pl)

6

81676

5/8'' Hex Nut (pl)

7980004200 Gearbox Base Plate

8906343 Gearbox Mount Plate

9904245 4 1/2'' Single Sheave (Machined End Up) (5' & 6')

904247 7'' Single Sheave (Machined End Up) (7')

10904246 4 1/2'' Double Sheave (5' & 6')

904248 5 1/4'' Double Sheave (7')

11966722 12'' Double Pulley (1.25'' Bore)

12

904251

B-70 Belts (5')

 

973506

B-78 Belts (6')

 

973248

B-87 Belts (7')

13

902667

5' Rear Discharge Deck

 

902668

6' Rear Discharge Deck

 

902669

7' Rear Discharge Deck

39

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Contents Page Page Table of Contents Description Shipping KIT and Bundle Numbers Parts DrawingsImportant Facts Warranty ClaimsWarranty Labor Government LegislationIntroduction Safety START-UP Safety General Safety InstructionsOperation Safety Safety Signs Transport SafetyService and Maintenance Safety Storage SafetyHeavy Duty Finishing Mower Safety Signs Safety Signs cont’d Chain KIT Assembly Hitch Assembly InstructionsQuick Hitch KIT Instructions START-UP Operating Instructions Connecting to TractorField Operation Disconnecting from TractorTheory of Operation Maintenance Heavy Duty Finishing Mower PTO Shafts PTO Shaft Mower Deck Wheel Bearings Item PART# Description Mower Deck Wheel BearingsMower Spindle Lubrication Mower Gearbox LubricationSpindle Replacement Heavy Duty Maintenance Spindle Replacement Spindle Replacement Item PART# Blade Replacement Blade Replacment Item PART# Every 40 Hours of USE Service NotesEvery 8 Hours of USE Date Every 20 Hours of USEChecking Bolt Torque ’, 6’ & 7’ Heavy Duty Rear Discharge Finishing Mower 7 Heavy Duty Rear Discharge Finishing Mower When Ordering PartsPage Page Heavy Duty Finishing Mower Gearbox Item # Description Heavy Duty Finishing Mower Gearbox Parts ListHeavy Duty Finishing Mower Spindle Assembly Finishing Mower Spindle Parts List 4, 5 & 6 Side and Rear Heavy Duty Rear Discharge Finishing Mower PTO Shaft Item # Description Heavy Duty Finishing Mower Heavy Duty Rear Discharge Chain KIT Quick Hitch KIT Blade Height Adjustment Item PART# Description Blade Height AdjustmentMower Deck Belt Adjustment Mower Deck Belt Adjustment Heavy Duty Finishing Mower Quantity Bundle no DescriptionOptional Bundle Numbers Page Page Page Buhler Manufacturing