Pull locater pin (A) out, and turn counterclockwise one-quarter turn to lock-out position.
3
Remove storage hook and cap from attachment drive shaft.
4
Note: Your coupler may appear different than coupler shown. Earlier model power heads may have shorter couplings.
5
Carefully fit attachment drive shaft assembly into coupler (B). Rotate shaft (C) to make sure inner lower drive shaft engages square upper drive shaft socket.
6
Note: Lower bearing housing and head assembly must be in line with power head.
Some models have an assembly line decal to assist in assembly.
7
Rotate locater pin (A) onequarter turn clockwise to engage lower shaft hole. Make sure locater pin is fully engaged by rotating lower drive shaft. Locater pin should snap flush in coupler. Full engagement will prevent further shaft rotation
8
Secure lower shaft assembly to coupler by tightening clamping knob (D).