Dynabrade 52211 Руководство - Страница 3
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Disassembly/Assembly Instructions - .5 Hp/7°/Front Exhaust
Important: Manufactures warranty is void if tool is disassembled before warranty expires.
Please refer to parts breakdown for part identification.
1.
Secure air tool in a vise equipped with aluminum or bronze jaws.
2.
Remove collet cap and insert.
3.
With an adjustable pin wrench or
silencer and fabric silencer.
4.
Pull motor assembly from housing.
5.
Reposition motor housing in vise so inlet bushing is pointing up.
6.
01494
Unscrew
Inlet Bushing turning counter-clockwise.
7.
Using needle nose pliers, remove
8.
Resecure housing in vise so throttle lever and
9.
Using a 2.5mm diameter drift pin and a hammer, remove
10.
95558
Remove
Retaining Ring and push
Optional:
To disassemble valve body from motor housing, peel back
(left hand threads).
1.
50011
Remove
Collet Body from rotor shaft by inserting 3/16" hex wrench through collet body and into rotor shaft. Twist collet body from shaft.
2.
01008
Remove
Front Bearing Plate, cylinder, blades (4) and
Note: 01007
01008
Bearing,
3.
01015
Press rotor from
Rear Bearing. Press
Motor Disassembly Complete.
Important:
Be sure parts are clean and in good repair before assembling.
1.
Place rotor in padded vise with a threaded spindle facing upwards.
2.
01010
Slip
Spacer onto rotor.
3.
01008
Place a .002" shim into
Bearing into plate.
4.
Install Bearing/Bearing Plate assembly onto rotor.
5.
50011
Tighten
Collet Body onto rotor (torque to 150 in. - lbs.).
6.
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.
7.
Once proper rotor/gap clearance is achieved, install well lubricated
for lubrication.
8.
Install cylinder over rotor. Be sure air inlet holes of cylinder face away from bearing plate.
9.
01015
Press
Rear Bearing into
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.
10.
Secure motor housing in padded vise so motor cavity faces upwards.
11.
Install motor assembly into housing. Be sure motor drops all the way into housing.
12.
Insert air control silencer and fabric silencer into
13.
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
Speed Regulator Assembly into valve body. Secure with
2.
Secure valve body in vise with air inlet facing up and throttle lever accessible.
3.
01464
Insert
Seal into housing.
4.
01449
Line-up the hole in the
that the metal pin passes through the hole in the valve stem.
5.
01468
Install
Spring (small end towards the tip valve).
6.
Apply a small amount of #567 Loctite (or equivalent) to threads of
7.
12132
Install throttle lever and
Tool Assembly Complete. Please allow 30 minutes for adhesives to cure before operating tool.
Important:
Motor should now be tested for proper operation at 90 PSIG. If motor does not operate properly or operates at a higher RPM than marked on
the tool, the tool should be serviced to correct the cause before use.
Note:
Throttle lever is preset at the factory at an 11:00 o'clock position.
Loctite
is a registered trademark of Loctite Corp.
®
50791
Lock Ring Wrench, remove
01468
01472
Spring,
Tip Valve and
12132
Pin are accessible.
12132
01469
Speed Regulator from Housing.
01149
Front Bearing Plate and
01015
Bearing from
Front Bearing Plate as an initial spacing (
01014
Rear Bearing Plate. Press bearing/bearing plate assembly onto rotor. Be sure that pin and air inlet holes line-up with pin
04087
Lock Ring and install onto motor housing (torque 150 in. - lbs.).
Valve Stem with the hole in the housing (looking past brass bushing). Using needle nose pliers, insert
Pin. Remove valve body from vise.
04087
Lock Ring by turning counter-clockwise. Remove air control
01464
Seal.
Pin from housing and remove throttle lever.
01558
01462
Collar to expose
01149
Spacer from rotor.
Spacer are a slip fit onto rotor.
01014
Rear Bearing plate.
Note: 01121
Shim Pack contains .001" and .002" shims) and slip
01011
Blades (4) into rotor slots. Dynabrade Air Lube P/N
95558
Retaining Ring.
01494
Inlet Bushing and install into valve body (torque 23 N•m 200 lbs. in.).
3
Lock Nut. Unscrew lock nut/valve body from housing
01007
95842
is recommended
01472
Tip Valve so