Dynabrade 52413 Instructions importantes concernant l'utilisation, l'entretien et la sécurité - Page 3
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Disassembly/Assembly Instructions-.7 Hp Rear Exhaust
Important: Manufacturer's warranty is void if tool is disassembled before warranty expires.
Notice: Dynabrade strongly recommends the use of their 52296 Repair Collar (sold separately) during assembly/disassembly activities. Failure to
use this collar will highly increase the risk of damage to the valve body of this tool. Please refer to parts breakdown for part identification.
1.
Disconnect tool from power source.
2.
Secure air tool in vise using
3.
With an open-end or adjustable wrench remove
4.
Pull motor assembly from housing.
5.
Attach a 2 in. bearing separator around the rear portion of the
6.
Place the separator on the table of a #2 arbor press with the rotor spindle pointing down.
7.
Press the rear rotor shaft out of the rear motor bearing by using a 3/16 in. flat nose drive punch.
8.
01028
Remove
Cylinder, and
9.
55025
Hold the body of the
10.
01007
Remove
Bearing,
11.
02649
Remove
Rear Bearing from the
Optional:
To disassemble the valve body from the motor housing, peel back
housing (left hand threads).
Motor Disassembly Complete.
1.
Position valve body in vise using
2.
Remove air fitting by securing
Important: 94523
Inlet Adapter must be secured before attempting to remove air fitting to avoid damaging valve body housing.
3.
94523
Remove
Inlet Adapter.
4.
95711
Remove
Retaining Ring from inlet adapter and separate
5.
Remove air control ring from valve body. Using needle nose pliers, remove
6.
Using a 2.5 mm drift pin, tap
7.
95558
Remove
Retaining Ring. Push
Disassembly Complete.
Important:
Be sure parts are clean and in good repair before assembling.
1.
55025
Hold the body of the
2.
Place a .002" shim into front bearing plate as an initial spacing and slip
Note: 01121
Shim Pack contains .001" and .002" shims.
3.
Slide bearing/bearing plate assembly onto rotor.
4.
01708
Install
Rotor Nut and tighten onto rotor (torque to 17 N•m/150 in. - lbs.).
5.
Check clearance between rotor and bearing plate by using a .001" feeler gauge. Clearance should be at .001" to .0015". Adjust clearance by repeating
steps 1-5 with different shim if necessary.
6.
Once proper rotor/gap clearance is achieved, install well lubricated
7.
Install cylinder over rotor. Be sure air inlet holes of cylinder face away from bearing plate.
8.
02649
Press
Rear Bearing into
Note: 96240
Bearing Press Tool can be used. Be sure that pin and air inlet holes line-up with pin slot and air inlet holes in cylinder.
Important:
Fit must be snug between bearing plates and cylinder. If too tight, rotor will not turn freely. Rotor must then be lightly tapped at press fit end so
it will turn freely while still maintaining a snug fit. A loose fit will not achieve the proper preload of motor bearings.
9.
Secure motor housing in padded vise so motor cavity faces upwards.
10.
Install motor assembly into housing. Be sure motor drops all the way into housing.
11.
04034
Install
Lock Nut onto motor housing (torque 34 N•m/300 in. - lbs.).
12.
Motor adjustment must now be checked. With motor housing still mounted in vise, pull end of rotor and twist (10-15 lbs. force), rotor should turn
freely without drag. If drag or rub is felt, then increase preload or remove shim. Also, push end of rotor and twist (10-15 lbs. force), rotor should
turn freely without drag. If drag or rub is felt, then deload or add shim.
1.
01469
Insert
Regulator with o-rings and valve stem in place into valve body. Secure with
2.
Secure valve body in vise using
3.
Line up hole in valve stem with hole in housing (looking past brass bushing). Insert
01468
valve stem. Install
4.
Assemble sintered muffler and felt muffler together and place in
5.
95438
Install
O-Ring into groove on muffler base. Place
6.
94523
Slip
Inlet Adapter through muffler assembly and install
7.
Install air control ring into valve body housing.
52296
Repair Collar. Remove disc pad.
04034
Exhaust Cover by turning counter-clockwise.
01185
Blades (4) from rotor.
Rotor in a soft (bronze or aluminum) jaw vise, and remove the
01008
Front Bearing Plate and
01743
Rear Bearing Plate by using Bearing Removal Tool
52296
Repair Collar with air inlet facing up.
94523
Inlet Adapter with a wrench and twist air fitting from inlet adapter.
12132
Pin from housing and remove throttle lever.
01469
Regulator from valve body and remove O-Rings.
Rotor in a soft (bronze or aluminum) jaw vise, and slide
01743
Rear Bearing Plate. Press bearing/bearing plate assembly onto rotor.
52296
Repair Collar with air inlet facing upwards. Insert
Spring (small end towards tip valve).
01028
Cylinder nearest the rear bearing plate.
01010
Spacer by sliding them from the rotor spindle.
01558
Collar to expose
94521
Muffler Base from
01468
Spring,
01010
01007
Bearing into plate.
01185
Blades (4) into rotor slots. Dynabrade air lube P/N
01472
94522
Muffler Cap. Install
95375
94526
O-Ring and
Spacer into recessed area of muffler cap.
95711
Retainer Ring into groove on inlet adapter.
3
01708
Rotor Nut by turning it counter-clockwise.
96213
.
01461
Lock Nut. Unscrew lock nut/valve body from
94522
Muffler Cap. Remove sintered muffler and felt muffler.
01472
01464
Tip Valve and
Seal.
Spacer onto rotor spindle.
95558
Retaining Ring.
01464
Seal.
Tip Valve so that the metal pin passes through the hole in the
94521
Muffler Base onto muffler cap.
95842
is recommended.