Dynorbital-Spirit 59000 Safety, Operation And Maintenance Download Page 8

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To Assemble (Continued):

11. Install the 58368 Bearing into the 59077 Rear Bearing Plate.

12. Use the small end of the 57091 Bearing Press Tool and the arbor press to install the rear bearing/plate onto the motor shaft balancer as is shown in

Drawing 5. Press the bearing/plate down until it touches the cylinder. This should create a snug fit between the bearing plates and cylinder.

13. Install the 01024 O-Ring into the cylinder and apply a small amount of the Dynabrade Air Lube onto the o-ring.

14. Coat the 50659 O-Ring with the Dynabrade Air Lube and install it into the 59058 Lock Ring. Slip these over the counter weight of the 3/32' and

the 3/16" orbit sanders.

15. Place a mark on the edge of the motor opening to identify the location of the line-up notch on the inside of the housing.
16. Install the motor assembly into the housing. Be certain that the line-up pin enters the notch in the housing.
17. Use the 57092 Collar to carefully hold the tool in a vise so that the counter balance is pointing up.
18. Use the 56058 Lock Ring Tool to tighten the 59058 Lock Ring by turning it clockwise. (Torque to 23 N•m/200 in.- lbs.)
19. Use the 26 mm open-end wrench to install a weight-mated sanding pad.

Valve and Speed Regulator Assemblies:

1. Secure housing in vice using 57092 Collar or padded jaws.
2. Remove inlet bushing, 01468 Spring, 58365 Tip Valve and 01464 Seal from housing. Remove 98927 Pin from housing and lever.
3. Remove 95697 Snap Ring. Press the speed regulator and valve stem out of the housing. Remove the 01025 O-Rings (2) and 98459 O-Ring.
4. Place new 01025 O-Rings (2) on the speed regulator and a new 98459 O-Ring on the valve stem. Then place in housing with valve stem. Install new

95967 Snap Ring. Apply a small amount of pneumatic tool oil to valve o-rings.

5. Place new 01464 Seal in housing. Using tweezers or needle nose pliers, place the tip valve into housing so that the tip valve goes under the valve

stem. Place new 01468 Spring into housing so small end is towards tip valve.

6. Apply a small amount of #567 Loctite

(or equivalent) around the threads of the first inlet bushing and tighten into housing to 23 N•m/200 in. - lbs.

7. Install Lever on housing with 98927 Pin centered on housing.

Note: Motor should operate at between 11,000 and 12,000 RPM at 6.2 bar (90 PSIG). RPM should be checked with a tachometer. Before operating,
we recommend that 2-3 drops of Dynabrade Air Lube P/N 95842 (or equivalent) be placed directly into the air inlet with throttle lever depressed. Operate the
machine for approximately 30 seconds before application to workpiece to determine if machine is working properly and safely and to allow lubricating
oils to properly dispense through machine.
Loctite

is a registered trademark of the Loctite Corp.

Disc Pad Change:

1. Insert 50679 Wrench on flats of 57069 Balancer Shaft and twist off sanding pad by hand.
2. With wrench still in place, hand tighten new pad on tool.
3. No need to remove shroud or overskirt.

Required Weight of Pads:

3" Models –– Use pad weighing 75g.

3-1/2" Models –– Use pad weighing 80g.

5" Models –– Use pad weighing 100g.
6" Models –– Use pad weighing 130g.

57091
Bearing Press Tool

Balancer Shaft Assembly

Motor Shaft Balancer

Front Bearing

Drawing 3

57091
Bearing Press Tool

Balancer Shaft Assembly

Motor Shaft Balancer