10
D
A
C
B
E
5.  Carefully t attachment drive shaft assembly into coupler (B) to 
decal assembly line (C), making sure that the inner lower drive shaft 
engages the square upper drive shaft socket.
NOTE
Earlier model Power Heads may have shorter couplings.  Short 
couplings t ush to decal point (E). New couplings are 4-3/4 in. 
long, and t ush to line (C).
NOTE
Lower bearing housing and head assembly must be in line with the 
engine.
6.  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 ush in coupler. Full engagement 
will prevent further shaft rotation.
7.  Secure lower shaft assembly to coupler by tightening clamping  
knob (D).
p l a s t I c  s h I e l d  I n s t a l l a t I o n
(for Nylon Line Operation)
Tools Required:  Torx T27 L-Wrench
Parts Required:  Plastic Shield, Shield Plate, three (3) 5mm x 16mm    
      screws.
NOTE
The plastic shield is for use with the Nylon Line Head only.  
Install Metal Shield when using plastic or metal blades.
1.  Remove plastic threaded shaft sleeve and adapter plate (C) from 
PTO shaft (A).
2.  Place the shield on the bottom of the bearing housing ange.
3.  Place shield plate (B) on shield, align holes. Install three (3) screws 
from bottom through plate and shield into gear case.
4.  Assemble adapter plate (C) onto PTO shaft.
A
B
C