Ryobi AC04141T User Manual
UNIVERSAL PRO CUT II
STRING HEAD
AC04141T
WARNING:
To reduce the risk of injury, user must read and understand the operator’s manual for their string trimmer
and this instruction sheet. Always wear eye protection
marked to comply with Z87.1 Ensure compatibility and
fit before using this accessory. Do not use this accessory
if a part is damaged or missing.
When using Ryobi and Homelite string trimmers, no adaptors are needed. For other brands, see the Adaptor Chart
for the proper hardware configuration needed to use the
Universal Pro Cut II String Head with your trimmer.
DRIVE SHAFT
STRING
HEAD
SPOOL
RETAINER
WARNING:
Failure to use the correct adaptor, nut, and spool retainer
combination for your trimmer could cause the string head
to detach from your trimmer and result in serious personal
injury and/or property damage.
INSTALLING STRING HEAD
See Figure 1.
Stop the engine and disconnect the spark plug wire.
Following the instructions in the operator’s manual for
your string trimmer, remove the old string head.
Install the string head on the drive shaft until fully
seated.
Install the spool retainer and tighten securely.
Install string as described in the next section.
INSTALLING STRING
See Figure 2.
Use monofilament string between .095 in. and .105 in.
diameter. Use original manufacturer’s replacement string
for best performance.
Stop the engine and disconnect the spark plug wire.
Gather two of the pre-cut lengths of trimmer line provided
or cut two pieces of trimmer line, in 11 in. lengths.
Insert the strings into the slots located on the sides of the
string head. String should be pushed in until approximately
1 in. protrudes from the holes on the top of the string
head.
Remove old string by pulling it from the holes located on
the top of the string head.
Fig. 1
INSERT STRINGS THROUGH SLOTS UNTIL
APPROX. 1 IN. PROTRUDES FROM HOLES
HOLE
PULL STRINGS
FROM HOLES
TO REMOVE
SLOT
SLOT
HOLE
Fig. 2
WARNING:
Do not remove screws or disassemble head. If head is
opened, compression springs may fly out toward operator
and result in serious injury.
987000-000
11-12-08 (REV:00)
TECHTRONIC INDUSTRIES NORTH AMERICA, INC.
1428 Pearman Dairy Road
Anderson, SC 29625, USA
Phone 1-800-860-4050
www.ryobitools.com
USING THE ADAPTORS
Along with the Pro Cut II String Head Assembly and pre-cut trimmer line, this package includes the items below, which may
be used to adapt the string head for use on the trimmers listed in the Adaptor Chart below.
Universal
Adaptor
Washer
(Used With Nuts
A, C & D Only)
Thread
Adaptor
Spacer Tightening
Tool
Find your trimmer model in the Adaptor Chart below, then use the adaptor configuration
listed to install the Pro Cut II String Head Assembly on your trimmer. For units that require
the universal adaptor, insert the specified nut into the universal adaptor as shown.
NOTE: This string head is not recommended for use on Troy-Bilt Speed Spool-equipped,
Honda, Stihl, or Husqvarna string trimmers.
Refer to the diagrams at right to see how the pieces fit together.
WARNING:
Failure to use the correct adaptor, nut, and spool retainer combination for your trimmer
could cause the string head to detach from your trimmer and result in serious personal
injury and/or property damage.
Adaptor Chart
Model Type Adaptor Configuration
MTD* Curved Shaft Thread Adaptor (tightened with Tightening Tool) + Spacer
MTD* Straight Shaft Direct Fit + Black Spool Retainer
* MTD brands include Bolens, Cub Cadet, Troy-Bilt, Yard-Man, Yard Machines, and select
Craftsman
Poulan** Curved Shaft Washer + Universal Adaptor + Nut A + Red Spool Retainer
Poulan** Straight Shaft Universal Adaptor + Nut E + Red Spool Retainer
** Poulan brands include Poulan, Poulan Pro, Weed Eater, and select Craftsman
Craftsman Straight Shaft Universal Adaptor + Nut F + Red Spool Retainer
Craftsman Curved Shaft Washer + Universal Adaptor + Nut A + Red Spool Retainer
Echo Curved Shaft Universal Adaptor + Nut B + Red Spool Retainer
Other models and brands not listed may fit with the use of the universal adaptor, a nut, and
the red spool retainer. For these units, test the adaptor with each nut to find one that tightens
securely. Test the string head to ensure that the string will contact the cutter on the grass
shield before operating. If the string head does not fit with any of the adaptors or nuts supplied,
contact Customer Service at 1-800-860-4050 for assistance.
Craftsman® is a registered trademark of Sears, Roebuck and Co. Yard Machine®, Yard-Man®, Bolens®, MTD®, Troy-Bilt®, and Cub
®
are registered trademarks of MTD Products, Inc. Weed Eater®, Poulan®, and Poulan Pro® are registered trademarks of
Cadet
Aktiebolaget Electrolux Corporation. Echo
®
is a registered trademark of Echo, Incorporated.
+ Black Spool Retainer
Nut
(6 Sizes)
Spool Retainer
(Black & Red)
Diagrams above represent order of parts
installation, however, all parts may not
be needed for your trimmer. Consult the
Adaptor Chart and use only the Adaptor
Configuration specified for your trimmer.
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