Bush Hog 3860 QT manual Bucket 3 Quick coupler mount 4 Center punch and drill 7/16 hole

QUICK DRAW BUCKET ONLY: Loosely secure plastic hose clamp and bar support with 3/8" flat- washer and nylon lock nut to 3/8" stud located on back side of bucket.

Locate center top of bucket and measure right 10 inches. Locate quick coupler mount on bucket at this point. Center punch and drill 7/16" diameter hole through top box section of bucket. Refer to Figure 9 and to Figure 6, page 37.

Figure 8

(1) Bucket.

(3)Quick coupler mount.

(4)Center punch and drill 7/16" hole.

Install two bulkhead straight fittings to quick coupler mount using bulkhead nuts. Install o-ring to top end of bulkhead fitting (if not already installed by factory). Install 3/4"-16 O-Ring Boss male and female quick couplers to top o-ring side of bulkhead fittings. Install JIC tee fittings to other side of bulkhead fittings. Refer to Figure 11, page 39. Secure quick coupler mount to bucket using 3/8"-16NC x 3-1/2" bolt, lockwasher and nylon lock nut. Refer to Figure 6, page 37.

IMPORTANT: Grapple kit contains one each of 3/4"-16 O-ring boss male and female quick cou- pler. Third cylinder tube kit contains one each of 1/2"-14 NPT male and female quick coupler. Identify quick coupler and fitting ends before installing quick couplers.

Install four hoses between cylinder 90° fittings and bulkhead tee fittings. Guide left hand hoses under plastic hose clamp and then tighten bolt. Refer to Figure 11, page 39.

IMPORTANT: Do not over tighten hose clamp hardware. Only tighten hardware enough to clamp hoses snugly. Tighten all other grapple bolts and fittings using Torque Chart, page 43.

Install hoses and fittings from grapple to loader using third cylinder tube kit. Connect hoses so that grapple operates as shown below. Refer to Figure 9.

	Lift Cylinder Circuit
	Pull the handle	Push the handle			Push handle full forward
	back to raise unit				to activate float position
		forward to lower unit
Pull the handle		Push the handle
back to roll			forward to
back attachment			dump attachment
	3rd Cylinder (optional) Circuit
	Pull the handle
				Push the handle
	back to open			forward to close
	assembly			assembly

Figure 9

OPERATING INSTRUCTIONS

When operating the loader with the grapple attach- ment, always remove the upper level of the stack first and approach the stack with the bucket level. The upper grapple teeth must be in the maximum open position. Never ram the grapple into material to be loaded to gain the desired depth. Close the upper grapple assembly only far enough to hold the mater- ial in place.

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