Mitsubishi Electric HS-U449 Service Manual page 29

2-21.MAIN CAM, GUIDE ARM (TU),
BRAKE LEVER, LB PIN
DECK POSITION : Normal
Remove the following parts before replacing the MAIN
CAM, GUIDE ARM (TU), and LEVER. Refer to the
corresponding items to install them.
• STAY PLATE (Item 2-2)
• BOTTOM ASSY (Item 2-3)
• SENSOR COVER (TU) (Item 2-10)
• MOTOR HOLDER (Item 2-16)
• WORM WHEEL (Item 2-16)
• PINCH ARM CAP (Item 2-17)
• PINCH UNIT (Item 2-17)
• F/L PLATE (Item 2-18)
• BRAKE CAM PLATE (Item 2-19)
(Removal)
1. Remove the MAIN CAM shown in Fig. 2-21-1.
2. Remove the GUIDE ARM (TU) shown in Fig. 2-21-1.
3. Move the BRAKE LEVER in Fig. 2-21-1 in the
direction shown by arrow A and release the catch
(a) to remove the BRAKE LEVER.
4. Remove the LB PIN shown in Fig. 2-21-1.
(Installation)
1. Install the LB PIN shown in Fig. 2-21-1.
2. Apply grease (MULTEMP AC-DM)[859D055O90] to
the specified parts on the new GUIDE ARM (TU) in
Fig. 2-21-1.
3. Apply grease (MULTEMP AC-DM)[859D055O90] to
the specified parts on the MAIN PLATE ASSY in Fig.
2-21-1.
4. Install the GUIDE ARM (TU), aligning the hole in the
GUIDE ARM (TU) shown in Fig. 2-21-2 with the hole
in the MAIN PLATE ASSY.
Note : Install the GUIDE ARM (TU) so that the part
specified with oblique lines of the GUIDE ARM
(TU) is positioned under the shaft flange of the
PINCH UNIT.
5. Install the BRAKE LEVER shown in Fig. 2-21-2 so
that the hole in the BRAKE LEVER overlaps the hole
in the MAIN PLATE ASSY.
6. Apply grease (MULTEMP AC-DM)[859D055O90] to the
specified parts on the new MAIN CAM in Fig. 2-21-3.
7. Install the MAIN CAM so that the hole in the MAIN
CAM shown in Fig. 2-21-2 overlaps with the hole in
the MAIN PLATE ASSY.
Note : Install the MAIN CAM, inserting the follower pins
of the CAPSTAN BRAKE ASSY, GUIDE ARM
(TU), and BRAKE LEVER into the grooves on the
back of the MAIN CAM.
Set the Main Cam while pulling the follower pin of
the CAPSTAN BRAKE ASSY in the direction
shown by arrow B (toward the deck front) using
tweezers as shown in Fig. 2-21-1.
Be careful not to apply grease to the wall when
applying it to the most external circle on the back
of the MAIN CAM (4 parts) shown in Fig. 2-21-3.
MAIN CAM
Follower pin
BRAKE LEVER
A
a
Back
GREASE
(MULTEMP AC-DM)
MAIN PLATE ASSY
MAIN CAM
GUIDE ARM (TU)
Part with
Oblique Lines
Hole
BRAKE
LEVER
Apply grease (MULTEMP AC-DM)
to the parts marked by
- 16 -
GREASE
(MULTEMP AC-DM)
GUIDE ARM (TU)
LB PIN
Follower pin of the
CAPSTAN BRAKE ASSY
B
MAIN PLATE ASSY
Fig. 2-21-1
Hole
Fig. 2-21-2
MAIN CAM
Front Back
.
Fig. 2-21-3
SHAFT
FLANGE
of the
PINCH
UNIT
Wall