Echo 99944200553 用户手册

1.  Turn gear housing assembly over so that gear housing mounting 

bolt (E) faces upward.

2.  Pull locator pin (A) out, and turn counter-clockwise 1/4 turn to 

lock-out position.

Thrown objects hazard.  Install lower drive shaft so that gear hous-

ing mounting bolt (E) faces upwards. Otherwise debris will be 

thrown toward user.  

3.  Remove cardboard spacer from coupler, if necessary.

4.  Carefully fit attachment drive shaft assembly into coupler (B) to 

decal assembly line (C), making sure that the inner lower drive 

shaft engages upper drive shaft mount.

Short couplings fit flush to decal point (F). Long couplings are 

4-3/4 in. long, and fit flush to line (C).

 

5.  Rotate locator pin (A) 1/4 turn clockwise to engage lower shaft  

hole. Insure locator pin is fully engaged by  twisting lower drive 

shaft. Locator pin should snap flush in coupler. Full engagement 

will prevent further shaft rotation.

6.  Secure lower shaft assembly to coupler by tightening clamping  

knob (D).