Publicité
Les langues disponibles
Les langues disponibles
3. Press the Blade Arbor Front Bearing (52) onto the
Arbor, slide the Front Arbor Bearing Cage (54) over
the Bearing and retain it using the Bearing Cage
Retainer (55) and Cage Retaining Screws (56).
Tighten the Screws to 20 in–lb (2.3 Nm) torque.
4. Install the Stationary Guard (58) using the Guard
Retaining Screws (59 and 60). Tighten the Screws to
3 ft–lb (4.1 Nm) torque.
5. If the Telescoping Guard (62) was removed, engage
the slot in the Guard with the Guide Pin (66) and
retain the Guard using the Guide Retainer (65).
6. Install the Guard Retracting Lever (73) onto the
Swing Guard (69) using the Lever Screw (74).
Tighten the Lever Screw to 8 in–lb (1.0 Nm) torque.
7. Slide the Swing Guard onto the hub of the Bearing
Cage, attach one end of the Swing Guard Spring (75)
to the hole in the edge of the Swing Guard and secure
the free end of the Spring using the Guard Spring
Screw (61).
8. Slide the Swing Guard Stop (70) onto the Swing
Guard Bracket. With the air supply shut off and the
hose drained or with the air hose disconnected,
operate the Swing Guard manually several times to
see that it swings quickly into the closed position.
Assembly of Throttle Handle
1. Retain the Throttle Valve Face (16) on the Throttle
Valve Stem (15) using the Valve Face Cap (17) and
the Valve Face Retaining Screw (18).
2. Install the Throttle Valve Cap Seal (21) onto the
Throttle Valve Cap (20).
3. Insert the assembled Valve Stem, followed by the
Throttle Valve Spring (19), small diameter first, into
the bore of the Throttle Handle (9). Retain these parts
using the Throttle Valve Cap.
4. Install the Throttle Lever (10) into its slot in the
Throttle Handle as illustrated on Drawing TPB642–3
using the Throttle Lever Pin (13).
5.
Drop the Plunger Spring Seat (23) into the Throttle
Handle and insert the Throttle Lock Plunger (12) and
Plunger Spring (22) into the plunger hole in the
Handle. Make certain the Plunger enters the hole in
the center of the Seat.
6.
Engage the recess in the face of the Throttle Lever
Lock (11) with the exposed end of the Lock Plunger,
align the through hole in the Throttle Handle with the
hole in the Lever Lock and press the Throttle Lever
Lock Pin (14) into the Handle. Actuate the Lever
Lock and Lever to determine that they are operating
smoothly.
7.
Before installing the assembled Handle onto the
Motor Housing (1), install an air hose in the tapped
MAINTENANCE SECTION
8. Position the Throttle Handle Assembly on the Motor
Run the performance tests at 90 psig (6.2 bar/620 kPa) air
pressure at the inlet of the tool with an eight foot (2.44 m)
length of 3/4" (19 mm) diameter air supply hose.
1. Without a blade on the tool, operate the Saw with the
2. Test the Saw for power by operating the motor on a
3. There must be no objectionable leaks in any
4. There must be no leaks past the closed Throttle that
5. The Saw must start smoothly when the Throttle Lever
6. The Saw must be equipped with a spring–loaded Lock
7. The tool must run smoothly without noticeable
8. The Arbor (51) must turn freely with no evidence of
9. The splines on the arbor must be free of nicks and
10. The Nameplate must be legible, in place and securely
22
inlet, apply 90 psig (6.2 bar/620 kPa) air pressure to
the Handle and operate the Lock and Lever a number
of times. Make certain that no air passes through the
valve when the Handle is in the locked position.
Housing and secure it by installing the Throttle
Handle Cap Screws (26) and Lock Washers (27).
TEST AND INSPECTION PROCEDURE
Throttle Lever fully depressed and check the free
speed by applying a hand–held tachometer to the
spindle end. The minimum allowable free speed is
3 850 rpm; the maximum allowable free speed is
4 150 rpm.
0.0003 brake with a 2–1/4 lb (10.0 N) load. The speed
of the Saw must be 2 500 rpm when operated under
these conditions. Continue this test to determine a
minimum stall force of 5 lb (22 N).
non–exhaust area. The Throttle must not leak when it
is closed.
will run the motor.
is depressed and must shut off completely when the
Throttle Lever is released.
(11). The Lock must return to the locked position
when the Throttle Lever is released and must prevent
operation of the Saw until the Lock is released.
vibration or unusual sound.
DISCONNECT THE SAW FROM THE AIR
SUPPLY HOSE OR SHUT OFF AIR TO THE
TOOL BEFORE PROCEEDING WITH THE
TEST AND INSPECTION PROCEDURE.
brinnelled bearings.
damage.
fastened. Make replacement if necessary.
Publicité
