Mounting A-Frame on Center Frame

Install Drive Shaft

See parts drawing on page 36.

Slide clutch and square shaft assembly onto gearbox shaft, using two 1/4" keys. Secure with 7/16 hex bolt through cross hole and tighten securely. Slip tubular outer drive assembly (19) over square shaft until closed. Install shield (42) on top of gearbox and secure with 5/8 NC lock nuts (76).

See parts drawing on page 36.

Attach A-frame half (16) to inside surface of mounting arms, using Category 2 mounting pin (14). Secure with 1-1/8 NF slotted hex nut (95). After assembling both sides of A-frame, assemble clevis pin (82) through top hole of A-frame halves. Secure clevis pin with two cot- ter pins (56).

Secure A-frame brace bars (6) to outside of attaching lugs with two 3/4 x 2 hex head cap screws, lock wash- ers and nuts. Attach top of brace bar to A-frame, using 3/4 x 4-1/2 hex head cap screw. Be sure brace bars and sleeve (89) are installed in bottom hole and between A-frame halves. Tighten all bolts securely. Torque hitch pin nuts to 300 lbs-ft and secure with cot- ter pins (56).

Connect top link and adjust so frame rides approxi- mately level. Connect front drive shaft to PTO shaft of tractor so that lock pins snaps into groove of PTO shaft. Be sure drive has adequate engagement and does not bind or bottom in any position. Optional longer drive is available.

Lift Cylinder Installation

See parts drawing on page 36.

Remove shield (26). Connect lift arm (10) by using a

1-1/8 x 7" clevis pin (94) through frame and secure with a 1/4 x 1-3/4 cotter pin (57). Be sure pin is installed pointing forward. If installed pointing backwards, the end will interfere with and damage drive shaft.

Install cylinder butt end to lug located on the cross channel of center frame by using pin furnishing in butt

end of cylinder. Discard pin in rod end and replace with 1 x 3" clevis pin (93) found in bag of parts. Remember to install pin pointing forward or damage to drive shaft will result. Connect rod end to lift arm by using the 1 x 3" clevis pin (93). Secure with a 1/4 x 1-1/2 cotter pin (56). Be sure sleeve (91) is installed in lift arm as shown and that the check valve plug (8) in base of cyl- inder is on bottom side and rod end fitting is on top.

Install a 1/2 x 1/4 reducing bushing followed by a 1/4" 90° swivel street 1/16 restrictor elbow in end of cylin- der. Use pipe thread compound and tighten securely. Position with port pointing inward.

Connect 1/4 x 90" long hydraulic hose (20) to swivel fit- ting. Run hose through loop provided on mounting arm and using rubber binding strap, attach hose to A-frame where it will stay clear of slip clutch. The front end of this hose must be connected to tractor hydraulic sys- tem. If the tractor has a valve, or if you are using the control valve (35), it must be connected as shown.

It is desirable to connect the hose through a quick cou- pler, if provided, on the tractor. A 1/2 x 1/4 reducing bushing is provided to adapt to the tractor quick cou- pler.

If a Woods valve is used, connect end of this hose to quick coupler provided with valve. To other end of quick coupler, connect the 36" hydraulic hose furnished with valve. Connect hose to top port of valve.

Attaching Cutter Head to Center Frame

Position center frame attaching lugs between center plates of cutter. Install 3/4 x 1-1/8 x 5/8" bushing (88) in center plates of cutter in four places. Also install two bushings (98) in lugs of center frame. Secure with two 3/4 x 3" hex head cap screws (80) and a flat washer (87), both under head and outside. NOTE: Be sure bolt is installed from inside out as shown on page 36. Add 3/4" hex lock nut (86) and torque to 300 lbs-ft.

Lift Link Installation

Connect clevis lift link (21), page 38, between lift arm and cutter frame as shown, using two 1 x 2-1/2" clevis pins (60) and cotter pins (46).

30 Assembly	29977 (Rev. 1/23/2009)

Install Drive Shaft