Motor Assembly/Disassembly Instructions – Dynorbital
®
Supreme
Important: Manufacturers warranty is void if tool is disassembled before warranty expires.
A complete Repair Kit, part number
57098
, is available which includes special tools for correct disassembly/assembly of tool.
To Disassemble
1.
Disconnect tool from power source.
2.
Invert machine and secure in vice, using
57092
Collar (supplied in
57098
Repair Kit) or padded jaws.
3.
Remove sanding pad with 26 mm open-end wrench (supplied with sander) and shroud or overskirt.
4.
Insert
56058
Lock Ring Tool (supplied in
57098
Repair Kit) into corresponding tabs of lock ring and unscrew.
Motor may now be lifted out for service.
Note:
To get it started try using 26 mm wrench for leverage or rock the motor back and forth to loosen up the rings.
5.
Remove lock ring, washer, front ring and rear ring from motor. Upper motor may now be disassembled. Remove
95626
Snap Ring.
6.
Remove the rear plate and the cylinder assembly by securing the cylinder in a bearing separator gripped on the
cylinder exhaust and extra pocket area. Push the motor shaft balancer through the bearing.
7.
Remove the rotor, vanes and rotor key from the motor shaft balancer. Remove the front plate using a small (#2)
arbor press. Support the edges of the front plate while pressing on the small end of the motor shaft balancer.
8. a.)
If, during step 7, the front plate and
57088
Bearing remain together, press
57088
Bearing out of the front
plate using
57091
Press Tool (supplied in
57098
Repair Kit) as shown in
Drawing 1
.
b.)
If, during step 7,
57088
Bearing remains on the motor shaft balancer, it can be removed
with a bearing separator.
9.
Remove
01206
Bearing from the rear plate by using a bearing press tool.
10.
Disassemble the balancer assembly as follows:
a.)
Place motor shaft assembly into a soft jaw vise. Using a thin screwdriver, pick out the end of
95630
Snap Ring
and peel out. This will loosen the balancer assembly.
b.)
Screw the threaded portion of the
56056
Bearing Puller (supplied in
57098
Repair Kit) into the
57069
Balancer
Shaft and heat the outside of the motor shaft balancer to approximately 200° F (approximately 10 seconds with a
propane torch). Now, using the slider weight, pull the assembly out.
c.)
Press off
56052
Bearing with a bearing separator and remove v-seal.
11.
If during step 10, the
56052
Bearing remains in the motor shaft balancer, it can be removed by the heating the
shaft balancer again and using either an inside bearing puller or a blind hole bearing puller.
To Assemble:
Important:
Be certain parts are clean and in good repair before assembling.
1.
Assemble the balancer assembly as follows:
a.)
Install
95630
Snap Ring onto balancer shaft. Install
59084
V-Seal with the flat side facing up.
b.)
Apply 1 drop of #271 Loctite
®
(or equivalent), spread over several places around the inside diameter of the
56052
Bearing and the outside diameter of the
57069
Balancer Shaft.
c.)
Use the small end of the
57091
Bearing Press Tool and arbor press to install the
56052
Balancer Bearing with
the seal side facing the v-seal.
Note:
The inner race of the bearing must sit against the step on the
balancer shaft. (Shown in
Drawing 2
.)
2.
Place the motor shaft balancer in a soft jaw vise with large end-up.
3.
Apply 1 drop of #271 Loctite
®
(or equivalent) and spread over several places around the outside diameter of the
56052
Bearing and slide balancer assembly into the motor shaft balancer until
56052
Bearing is firmly seated at
bottom. Squeeze
95630
Snap Ring into groove in motor shaft balancer to complete the assembly. Remove from vise.
4.
Press
57088
Bearing onto the motor shaft balancer down to the shoulder as shown in
Drawing 3
.
5.
Press
57057
Front Bearing Plate onto
57088
Bearing as shown in
Drawing 4
and check for smooth rotation.
(continued on next page)
5
Self Generated Vacuum
Non-Vacuum
Index Key
No.
Part #
Description
1
69364
Shroud Adapter
2
57083
Vacuum Adapter
3
96197
Dowel Pin
4
57066
Muffler Body
5
95526
O-Ring
6
69353
Vac Nozzle
7
57067
Vac Tube
8
57093
Central Vacuum Adapter
9
56027
Muffler Insert (3)
10
69359
Muffler Body
11
69272
Muffler Assembly
12
69273
Muffler Assembly
1
2
3
4
5
6
7
Optional: 30 quantity Muffler Insert available, P/N
56054
.
Central Vacuum
1 N•m
T
1
8
9
10
1 N•m
T
9
11
12
10
Drawing 1
57091
Bearing Press Tool
57088
Bearing
57057
Front Bearing Plate
Support
57091
Bearing Press Tool
Balancer Shaft Assembly
56052
Bearing
59084
V-Seal
Drawing 2