Bush Hog Estate Series Leveling The Deck And Setting The, Deck Belt Adjustment, replacement parts

LEVELING THE DECK AND SETTING THE		DECK BELT ADJUSTMENT
COUNTERBALANCE SPRING TENSION		Belt adjustment should be checked every (50) hours
1.	Set all tire pressures to the correct specifications.	of operation to get maximum life and cutting perfor-
		mance. Belt tension is adjusted by increasing or
2.	Rest machine on a level slab of concrete.
		decreasing the length of the spring on the movable
3.	Depress the deck lift pedal to raise the deck to the
		idler by adjusting the eye bolt length (Shown below).
	full lift height position and move the height adjust
		For correct belt tension, adjust the spring length to 6-
	pin to the 4.5” position.
		7/8” for the 44” deck and 7-1/2” for the 52” deck.
4.	Take all the force off the two deck lift springs by
	loosening the nut at the front of each spring.	DECK BELT REPLACEMENT
5.	Place a level on the deck, from front to rear. If the
	level is too short to reach all the way from front to	(NOTE: Use only genuine Bush Hog
	rear, lay a straight edge on the deck first, then	replacement parts)
	place the level on the straight edge.
6.	Lay a .12” spacer beneath the front level. this will	1. Remove the R.H. and L.H. deck shield assemblies
	automatically set the rear of the deck higher than	(Fig. ).
	the front.	2. Relieve the spring tension by loosening the two
7.	Adjust the nuts at the rear trunnion forward to	5/16” hex nuts on the spring adjustment eye bolt.
	raise the rear of the deck (Shown below) until the	3. Remove the old belt.
	level’s bubble is centered. Repeat for the other side.	4. Install the new belt being sure the belt is properly
8.	Check to verify the deck is leveled side-to-side. To	routed and positioned in all sheave grooves.
	do this, lay a 2” x 4” x 30” piece of wood under	5. Adjust tension on the belt by adjusting the length
	each side of the deck and lower the deck to rest	of the spring on the idler (See Deck Belt
	freely on the top of these boards. Inspect the (4)	Adjustment section).
	lift chains to see if tension is on each of them. If	6. Replace the deck shield assemblies.
	any of the chains appear slack, loosen the cam	DECK BELT DIAGRAM
	bushing bolt just enough to allow the cam bushing
	to be turned to remove the slack from the chain.	Spring Length
	Tighten the cam bushing bolt to 76 ft.lbs.	44” Deck - 6-7/8”, 52” Deck - 7-1/2”

9.Raise the deck up to the transport position and lock in place.

10. Remove the 2” x 4”s from under the deck.	Eye Bolt Adjustment
11. Tighten each of the counterbalance spring nuts
until springs are to the following lengths.
44” Deck - Spring length of 16.5”
52” Deck - Spring length of 16.0”
The springs may be tightened or loosened from
this point according to personal preference.
Rear Trunnion	Spring Loaded Idler
Level on
Mower Deck
.12” Spacer
At Front End
Height
Adjustment Pin
Deck	WARNING
Lift Pedal	TO AVOID SERIOUS BURN INJURIES:
Upper	● ALLOW ENGINE, OIL AND HYDRAULIC FLU-
Chain Fastener
	IDS TO COOL BEFORE SERVICING TRANSMIS-
Deck	SION OR ENGINE SYSTEM
Shield	CAUTION
Deck
	TO AVOID CLEANING SOLVENT FIRES:
Deck Lift Spring	● AVOID USING FLAMMABLE SOLVENTS.
	● AVOID AREAS WITH IGNITION SOURCES
Adjustment Nut
	WHEN USING FLAMMABLE SOLVENTS.

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