Echo 99944200540 - Manual (Page 8)

8
Parts Required: PAS or SRM-SB Power Head w/Shaft & Coupling.
1. Set Power Head/Shaft Assembly on a level surface.
2. Pull locator pin (A) out, and turn counter-clockwise 1/4 turn to lock-
out position.
3. Remove vinyl cap from attachment drive shaft.
4. Remove cardboard spacer, if necessary.
5. Carefully fit attachment drive shaft assembly into coupler (B) to
decal assembly line (C), making sure that the inner lower drive shaft
engages into the square upper drive shaft socket.
NOTE
Earlier model Power Heads may have shorter couplings. Short
couplings fit flush to decal point (E). New couplings are 4-3/4 in.
long, and fit flush 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 flush in coupler. Full engagement
will prevent further shaft rotation.
7. Secure lower shaft assembly to coupler by tightening clamping
knob (D).
a
ssembly
A
B
D
E
C
D
C
A
plasTIC shIeld InsTallaTIon
(For Nylon Line Operation)
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. Place plastic shield on bottom of bearing housing flange.
2. Place shield plate on plastic shield, align holes. Install three (3)
screws from bottom through plate and shield into gear case.
power head shafT
/
lower shafT assembly
WARNING
Do not perform maintenance or assembly procedures with engine running.