Disassembly/Assembly Instructions - (continued)
7. Use a 3/16 in. dia. drive punch as a press tool and position it on the rear rotor shaft. Press the rotor out of the 02696 Bearing. The 02696 Bearing can be removed from the
02676 Bearing plate with a 96210 Bearing Removal tool and arbor press.
8. Place the flat side of the 01478 Front Bearing Plate on an arbor press tool plate or bearing separator and press the sun gear end of the 54553 Rotor from the front
bearing/plate assembly.
9. Push 02649 Bearing out of the front bearing plate and remove shims. Slip 01479 Spacer off rotor.
Motor Disassembly Complete.
Valve Body Disassembly:
1. Use 52296 Repair Collar to securely hold the motor housing in a vise so that the inlet adapter is pointing up.
2. Remove the 94535 Muffler Assembly by loosening the 01578 Inlet Adapter. Also remove 01468 Spring, 01472 Tip Valve, and 01464 Seal. Note: Refer to the parts
breakdown for parts identification and order of assembly of the 94535 Muffler
3. Reposition the motor housing in the vise so that the throttle lever, and 12132 Pin are accessible. Remove the pin and lever by using a 2.5 mm dia. drive punch.
4. Use retaining ring pliers to remove the 95558 Retaining Ring and push the 01469 Speed regulator Assembly out of the motor housing.
Valve Body Disassembly Complete.
Planetary Gear Disassembly:
1. Separate the 50024 Gear Case from the 50019 Lock Nut. (Use two 34 mm or adjustable wrenches.)
2. Remove the 50784 Set Screw and pull the planetary gear assembly out of the gear case.
3. Fasten a bearing separator between the 54520 Bearing and the 54468 Ring Gear. Place the separator on
the table of the arbor press so that the pinion gear is pointing toward the floor. Use a 3/8 in. dia. drive punch
as a press tool to push the carrier from the 54520 Bearing.
4. Carefully hold the 50023 Planetary Carrier in a vise with aluminum or bronze jaws. Note: Do not crush the gears.
5. Use a 14 mm wrench to remove the 02600 Pinion turning it counter clockwise.
6. Press the front 54520 Bearing from the planetary carrier.
7. Use a 3/32 in. dia. drive punch to remove the 54472 Shafts and 06213 Gears.
Planetary Gear Disassembly Complete.
Angle-Head Disassembly:
1. Secure the 02031 Housing in a vise using 52296 Repair Collar to provide protection for the housing. Position the housing so that the 02035 Lock Nut is facing up.
2. Use 50971 Lock Ring Tool to remove the 02035 Lock Nut, turning it counter-clockwise.
3. Grasp the 02034 Spindle and pull the spindle along with 54520 Bearing, 02599 Gear and shims out of the housing.
4. The bearing and gear can be pressed off the spindle with an arbor press.
5. If necessary the 02033 Needle Bearing can be removed by using a 5/16 in. dia. drive punch to push the 02041 Gear Oil Plate, and 01041 Gear Oil Fitting out of the 02031 Housing.
Angle-Head Disassembly Complete.
Valve Body Assembly:
1. Install 01469 Speed Regulator Assembly into the motor housing, and secure it in place with 95558 Retaining Ring.
2. Use 52296 Repair Collar to securely hold the motor housing in a vise so that the air inlet is pointing up.
3. Insert the 01449 Valve Stem into the speed regulator assembly so that the hole in the valve stem aligns with the air inlet hole in the motor housing.
4. Install 01464 Seal so that it lays flat. Use a needle nose pliers to grasp the nylon portion of the 01472 tip Valve and install it so that the metal pin fits into the hole of
the 01449 Valve Stem.
5. Install the 01468 Spring so that the smaller end fits over the back of the tip valve.
6. Install the 94535 Muffler Assembly by applying a small amount of Loctite®#567 or equivalent to the male threads of the 01578 Inlet Adapter and tighten.
(Torque to 23 N•m/200 in. lbs.)
Valve Body Assembly Complete.
Motor Assembly:
Important: Clean and inspect parts for wear or damage before assembling.
1. Hold the body of the 54553 Rotor in a vise with aluminum or bronze jaws so that the sun gear is pointing up.
2. Slip 01479 Spacer onto 54553 Rotor.
3. Place a .002 thick shim into the 01478 Front Bearing Plate as an initial spacing and then install 02649 Bearing into the front bearing plate.
4. Use the 96240 Bearing Press Tool so that it pushes against the inner race of the 02469 Bearing and with an arbor press, install the bearing and plate assembly onto the rotor.
5. Check the clarence between the rotor and the bearing plate with a .001" thick feeler gage. Clarence should be .001" to .0015". If it is necessary, readjust clarence by
repeating steps 3-5 with a different thickness shim.
6. Once the proper rotor/plate clarence is achieved, apply air motor lubricant (Dynabrade Air Lube; 10W/NR or equivalent) to the (4) 01480 Blades and install them into the door.
7. Use the 96216 Bearing Press Tool so that it pushes against the outer race of the 02696 Bearing and install it into the 02676 Rear Bearing Plate with an arbor press.
8. Install the 01476 Cylinder so that it rests against the 01478 Bearing Plate. Note: Make sure that the air inlet passage of the cylinder is properly aligned with the air inlet
passage in the 02676 Bearing Plate.
9. Use the 96216 Bearing Press Tool so that it pushes against the inner race of the 02696 Bearing and install the rear bearing/plate assembly onto the motor assembly with an
arbor press. Important: Carefully press the rear bearing/plate assembly onto the rotor until it touches the 01476 Cylinder. A "snug" fit should exist between the bearing
plates and cylinder. If it is too tight the rotor will not turn freely and will cause damage to the bearings. If it is too loose the proper bearing preload will not be achieved.
10. Apply a small amount of grease to the seal of the 02696 Rear Bearing and place the 02679 Shield against the seal of the bearing.
11. Install the motor assembly into the housing so that the air passage node of the rear bearing plate aligns with the air passage notch inside the housing.
12. Apply a small amount of Loctite®#567 (or equivalent) to the threads of the motor housing and use a 34 mm (or an adjustable wrench) to connect the gear case assembly
to the motor housing. (Torque to 34 N•m/300 in. lbs.)
Motor Assembly Complete.
Planetary Gear Assembly:
1. Place front face (end with threaded male spindle) of 50023 Planetary Carrier against a block so that the carrier is sitting flat.
2. Start (2) 54472 Shafts by hand with a hammer into the two holes in the rear face of the carrier. (Be careful not to set the shafts too deep.)
3. Apply some of grease (Lubriplate #630 AA or equivalent) to the (2) 06213 Gears and position gear into the 50023 Planetary Carrier. Use an arbor press and carefully press
the 54472 Shafts through the 06213 Gears so that the end of the shaft is flush with the top of the carriers rear face.
4. Place the flat side of 50022 Spacer against the front face of the carrier. Slide the 02649 Bearing onto the threaded shaft of the carrier and secure it with the
02600 Pinion. (Torque to 17 N•m/150 in. lbs.)
5. Install the 54468 Ring Gear onto the planetary carrier assembly so that the two notches face away from the threaded shaft.
(continued on next page)
02031 Housing
02033 Needle Bearing
02041 Gear Oil Plate
2 Drops of Loctite
01041 Gear Oil Fitting