Woods Equipment BH6000 manual Swing Cylinder

Swing Cylinder

1.	Spanner nut	A.	Seal
2.	Rod guide	B.	O-ring
3.	Barrel	C.	O-ring
4.	Rod assembly	D.	O-ring
5.	Cotter pin	E.	Backup ring
6.	Slotted nut	F.	Rod seal
7.	Piston	G.	Retaining ring
		H.	Wiper
		J.	Iron ring

Figure 20. Swing Cylinder

Disassemble

On the 2-1/2" spanner nut type cylinders, Figure 20, unscrew spanner nut (1) using a spanner wrench, or carefully use a punch and hammer.

Tap rod guide (2) into barrel (3) about 1/2". Remove round retaining ring (G). Pull on rod (4) to remove parts from barrel.

Clamp cross pin end of rod assembly (4) in a vise with protective jaws. Remove cotter pin (5) and nut (6) from rod assembly. Remove piston (7) and rod guide (2) from rod.

Remove and discard all seals, wear rings and O-rings. Clean all components in solvent and blow dry with low pressure air.

Inspect inside of cylinder barrel and rod surface for any scratches or scouring. Small scratches can be removed with fine crocus cloth. If scratches cannot be repaired, replace entire cylinder.

Assemble

Lubricate O-rings and seals with clean hydraulic fluid. Install back-up washer (E) on rod guide (2), then install O-ring (D) in exterior O-ring groove of rod guide. Install rod seal (F) into inner groove of rod guide with open portion of V-groove toward piston.

Place rod wiper (H) in outer rod guide groove. Slide rod guide assembly (5) onto rod (1). Place iron rings (J) in outer grooves of piston. Place piston seal (A) and O- ring (B) in center piston groove. Install O-ring (C) on lip of piston.

Install piston (7) onto rod (4). Install nut (6) and torque to 150-180 lbs-ft. Install cotter pin (5).

Compress iron ring and piston seal and carefully insert piston and rod assembly into barrel. Use care to pre- vent damage while installing.

Carefully push or tap rod guide (2) into barrel (3) just past groove inside barrel. Insert retaining ring (G) into groove and pull rod (4) to seat rod guide (2) against ring. Apply thread-locking compound (removable) to spanner nut (1). Screw spanner nut (1) onto rod guide

(2)using a spanner wrench, or carefully use a punch and hammer.

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MAN0306 (Rev. 6/16/2006) Dealer Service 25