Use and Care Manual
10
as s e m b l y
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  
(Nylon line operation)
Tools Required:  Torx T27 L-Wrench, Locking Tool
Parts Required:  Plastic Debris Shield, Shield Plate, 
three (3) 5 x 16 mm screws.
   WARNING 
The plastic shield is for use with the Nylon Line Head only. Install 
Metal Shield when using plastic or metal blades, or serious injury 
may result.
1.  Align hole in upper plate (A) with notch in gear housing (B), and 
insert locking tool to prevent splined shaft from turning. Arrow on 
gear housing ange points to notch location.
2.  Remove cotter pin (C), L.H. blade nut (D), lower plate (E), and 
upper plate (A) from PTO shaft (F). Turn blade nut clockwise to 
remove.
3.  Remove locking tool (G). Retain lower plate (E), blade nut, and 
cotter pin (C) for future use with blade conversions.
4.  Align plastic debris shield (H) with the drive shaft, and install on 
the bottom of the gear housing ange.
5.  Place shield plate (I) on shield, align holes and install three (3) 
screws.
6.  Replace upper plate (A) on PTO shaft (F).
I
A
H
E
D
C
A
B
n y l o n  l I n e  h e a d  I n s t a l l a t I o n
Tools Required:  Locking Tool, 17x19 mm Wrench   
Parts Required:  Nylon Line Head.
 CAUTION 
Wear Gloves or personal injury may result: 
• Cutoff knife is sharp.
• Gearcase and surrounding area may be hot.
1.  Make sure plastic debris shield (H) is properly aligned, and upper 
plate (A) is installed on splined PTO shaft (F). 
2.  Align hole in upper plate (A) with notch in gear housing (B), and 
insert locking tool (G) to prevent splined shaft from turning.
3.  Thread line head (J) onto PTO shaft by turning it counter-clock-
wise until head is tight against upper plate (A). 
4.  Remove locking tool (G).
G
J
A
F
F
G
IMPORTANT
Semi-automatic nylon line heads must be used only with plastic 
debris shield with cut-off knife. Using nylon line heads with metal 
debris shield can result in trimmer damage, caused by operation 
with excessive line length.










