User Manual

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 (5" & 6")
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
* For use on 5" & 6" Diameters Only.