CONTENTS 99944200540
14 X7532279111
© 02/2020 ECHO Inc.
CONTENTS
The ECHO product you purchased has been factory pre-assembled for your 
convenience. 
After opening the carton, check for damage. Immediately notify your retailer 
or ECHO Dealer of damaged or missing parts. Use the contents list to check 
for missing parts.
ASSEMBLY
Power Head Shaft to Lower Shaft Assembly
Do not perform maintenance or assembly procedures with 
engine running.
1. Set Power Head/Shaft Assembly on a level surface.
2. 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.
Note:  Your coupler may appear different than coupler shown. 
Earlier model power heads may have shorter couplings.
4. Carefully fit attachment drive 
shaft assembly into coupler (B). 
Rotate the shaft (C) to make 
sure the inner lower drive shaft 
engages the square upper drive 
shaft socket.
Note:  Lower bearing housing 
and head assembly must 
be in line with the engine.
1 Trimmer Attachment
1 Operator's Manual
1 Warranty Sheet
1 Storage Hook Assembly
Parts Required: PAS or SRM-SB Power Head Shaft and Coupling