10
OPERATING THE
SPLIT BOOM
®
COUPLER
Model 990r is equipped with a Split Boom® coupler,
which enables optional attachments to be installed on this
unit.
The optional attachments are:
Sweeper/Blower ......................................................SB720r
Vacuum ......................................................................LV720r
Edger ........................................................................LE720r
Cultivator ..................................................................GC720r
Straight Shaft Trimmer ..............................................SS720r
Curved Shaft Trimmer ..............................................CS720r
Tree Pruner ................................................................TP720r
Removing the Lower (Attachment) Boom
Fig. 12
Fig. 13
ASSEMBLY INSTRUCTIONS (Continued)
NOTE:
To make removing the boom easier,
place the unit on the ground or on a
table.
Fig. 11
1. Loosen the wing screws (Fig. 11).
2. Push the release button (Fig. 11).
3. Pull the lower boom straight out of the coupler (Fig. 12).
Installing the Lower (Attachment) Boom
1. Loosen the wing screws. This will allow the lower
boom to be inserted into the coupler (Fig. 12).
2. Remove the protective cover or hanger from the lower
(attachment) boom. Push the lower (attachment)
boom into the coupler (Fig. 13).
3. Before locking the release button into the coupler,
rotate the boom 90 degrees; then rotate the lower
boom back 90 degrees. This will ensure the drive
shafts in both the upper and lower booms are
engaged.
3. Locate and lock the release button into the hole in
coupler (Fig. 11).
4. Check the sight hole to make sure both ends of the
boom are together (Fig. 13). Tighten the wing screws
before using the unit.
Release Button
Coupler
Thumb Screw
Thumb Screw
Lower Boom
Coupler
Upper
Boom
Thumb Screws (2)
Release
Button
Thumb
Screws (2)
Sight Hole
Coupler
