Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
7
Chain Saws with Chain Brake
Assembly
Refer to the Illustration and Parts List for correct
orientation and placement of parts.
Replace any O-rings and gaskets on parts that have
been disassembled. Apply hydraulic fluid or O-ring
lubricant to all O-rings and all metal surfaces which they
must slide over. When installing an O-ring which must
slide over sharp surfaces, use a rolling motion and be
careful not to damage the O-ring.
Wherever the assembly results in metal-to-metal contact,
coat the surfaces with hydraulic fluid or O-ring lubricant.
Saw Head and Motor
1. Install a new O-ring (29) in the saw head motor body
(1) using an O-ring tool. Be careful not to damage
the O-ring during installation.
2. Install the two dowel pins (23) in the saw head
motor body, if they were removed. Install the gasket
(25).
3. Press the bearing (35) on the drive shaft (32).
Generously lubricate the drive shaft and install the
drive shaft and bearing in the saw head motor body.
Press the bearing into place. Secure with a 1-3/8"
internal ring (36).
4. Install the Woodruff key (33) and one gear (26) on
the drive shaft (32).
5. Install the drive pin (28) in the idler shaft (27), if it
was removed. Slide one gear (26) on the idler shaft
(15). Install the idler shaft with the gear (26) in the
saw head motor body.
6. Install the motor cap (22) on the saw head motor
body (1), aligning the scribe marks that were made
during disassembly.
7. Secure the motor cap using eight 1/4 x 1" socket
head cap screws (21). Torque the cap screws to
10 Newton-meters (90 in-lb).
Metering Screw
Install a new O-ring (31) on the metering screw (30).
Install the metering screw (30) in the saw head (1).
Trigger Actuator, Spring, Trigger,
Control Spool, and Sleeve
1. If removed, ensure proper seating of the spring
(12) prior to installation of the trigger actuator (11).
One end of the spring must be seated over the cast
feature near the end of the slot on the bottom of the
handle (1). The other end fits over the feature on the
trigger actuator as shown in the Illustration.
2. Secure the trigger actuator in place using two .156
dia. x 1" roll pins (9).
3. If removed, attach the link (19) to the trigger (20)
using one .156 dia. x .5 roll pin (10).
4. If removed, install the trigger/link assembly (20/19)
into the slot in the bottom of the handle (1) and
secure in place using one .156 dia. x 1" roll pin (9).
5. Install two new O-rings (6, 8) on the sleeve (7).
Install one new O-ring (13) into the sleeve bore of
the saw head body (1).
6. Install a new O-ring (15) onto the spool (18) and
install the spool into the sleeve (7).
7. Secure the spool (18) into the sleeve (7) using one
5/16–18 x .375" button head cap screw (5). Apply
a thread-locking compound, such as Loctite 242
Threadlocker or equivalent, to the cap screw (5).
Follow the manufacturer’s instructions for applying
and curing.
8. Install the sleeve and spool assembly into the sleeve
bore in the saw head body (1). Secure using one
7/8" external retaining ring (14).
9. Install the spring (16) and washer (17) onto the end
of the spool (18).
10. Depress the washer (17) and spring (16) and secure
the link (19) to the end of the spool (18) using one
.156 dia. x 1" roll pin (9).
Torque Sequence
1
3
4
2
5
7
8
6
