Page 1
Parts Page Reorder No. PD04•40
Effective August, 2004
1Hp Die Grinder
Governor Controlled
Air Tool Manual – Safety, Operation and Maintenance
Models:
52660 – 950 RPM, 1/4"
52661 – 1,800 RPM, 1/4"
52662 – 3,400 RPM, 1/4"
52663 – 4,500 RPM, 1/4"
52680 – 950 RPM, 6mm
52681 – 1,800 RPM, 6mm
52682 – 3,400 RPM, 6mm
52683 – 4,500 RPM, 6mm
SAFETY LEGEND
G
Read and understand tool manual before
work starts to reduce risk of injury to
operator, visitors, and tool.
Eye protection must be worn at all times,
eye protection to conform to ANSI Z87.1.
Respiratory protection to be used when exposed to
contaminants that exceed the applicable threshold
limit values required by law.
Practice safety requirements.Work alert,
have proper attire, and do not operate tools under
the influence of alcohol or drugs.
Ear protection to be worn when exposure to sound,
exceeds the limits of applicable Federal, State or
local statues, ordinances and/or regulations.
Air line hazard, pressurized supply lines and flexible
hoses can cause serious injury.Do not use damaged,
frayed or deteriorated air hoses and fittings.
Read and understand this tool manual before operating your air tool.Follow all safety rules for the protection of operating personnel
as well as adjacent areas. Always operate, inspect and maintain this tool in accordance with the American National Safety Institute
(ANSI) Safety Code for Portable Air Tools – B186.1. For additional safety information, refer to Safety Requirements for the Use, Care
and Protection of Abrasive Wheels – ANSI B7.1, Code of Federal Regulation – CFR 29 Part 1910, European Committee for Standards
(EN) Hand Held Non-Electric Power Tools – Safety Requirements and applicable State and Local Regulations.
SAFETY INSTRUCTIONS
Carefully Read all instructions before operating or servicing any Dynabrade®Abrasive Power Tool.
Products offered by Dynabrade are not to be modified, converted or otherwise altered from the original design without expressed written consent from Dynabrade, Inc.
Tool Intent: Planetary geared die grinders are ideal for removal and polishing of materials using deburring, cleaning and polishing accessories.
Do Not Use Tool For Anything Other Than Its Intended Applications.
This power tool is not intended for use in potentially explosive atmospheres and is not insulated against contact with electrical power.
Training: Proper care, maintenance, and storage of your tool will maximize its performance.
• Employer's Responsibility – Provide planetary geared die grinder operators with safety instructions and training for safe use of tools and accessories.
Accessory Selection:
• Abrasive/accessory RPM (speed) rating MUST be approved for ATLEASTthe tool RPMrating.
• Before mounting an accessory, visually inspect for defects. Do not use defective accessories.
• Use only recommended accessories. See back page of manual and Dynabrade literature.
• Follow tool specifications before choosing size and type of accessory.
• Only use recommended fittings and air line sizes. Air supply hose and air hose accessories must have a minimum working pressure rating of 150 PSIG (10 Bars, g) or 150
percent of the maximum pressure produced in the system, whichever is higher. (See tool Machine Specifications table.)
• DO NOT use – cut off wheels or router bits.
OPERATING INSTRUCTIONS
Warning: Always wear eye protection. Operator of tool is responsible for following: accepted eye, face, respiratory, hearing and body protection.
Caution: Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibration.
(continued on next page)
SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL
WARNIN
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
Page 2
To Tool Station
Closed Loop Pipe System
(Sloped in the direction of air flow)
Ball
Valve
Ball
Valve
Filter
Coupler
Regulator
Lubricator
Air Flow
Drain
Valve
Drain
Valve
Air Tool
Air Compressor
and Receiver
Drain Valve
Air Hose
90 PSIG MAX
(6.2 Bar)
Air Flow
Refrigerated
Air Dryer
2
Filter
Regulator
Lubricator
90 PSIG
(6.2 Bar)
OPERATING INSTRUCTIONS (continued)
• Keep hand and clothing away from working end of the air tool.
Operation: Be sure that any loose clothing, hair and all jewelry is properly restrained.
• Secure inlet bushing on air tool with a wrench before attempting to install the air fitting to avoid damaging housing assembly.
• Check tool RPM (speed) with tachometer with air pressure set at 90 PSIG while the tool is running. If tool is operating at a higher speed than the RPM marked on the tool
housing, or operating improperly, the tool must be serviced and corrected before use.
Caution: Tool RPMmust never exceed abrasive/accessory RPM rating. Check accessory manufacturer for details on maximum operating speed or special
mounting instructions.
• With power source disconnected from air tool, mount recommended accessory into collet assembly.
• The mandrel diameter of the abrasive/accessory must insert freely, but not loosely, all the way to the base of the collet body before tightening the collet cap. Use
wrenches provided.
• Connect air tool to power source. Be careful NOT to depress throttle lever in the process. Do not expose air tool to inlet pressure above 90 PSIG or (6.2 Bars).
Caution: After installing the accessory, before testing or use and/or after assembling tool, the grinder must be started at a reduced speed to check for good balance.
Gradually increase tool speed. DO NOT USE if tool vibration is excessive. Correct cause, and retest to insure safe operation.
• Make sure that work area is uncluttered, and visitors are at a safe range from the tools and debris.
• Use a vise or clamping device to hold work piece firmly in place.
• Air tools are not intended for use in explosive atmospheres and are not insulated for contact with electric power sources.
• Do not apply excessive force on tool or apply “rough” treatment to it.
• Always work with a firm footing, posture and proper lighting.
• Ensure that sparks and debris resulting from work does not create a hazard.
• This tool has rear exhaust. Exhaust may contain lubricants, vane material, bearing grease, and other materials flushed thru the tool.
Warning: Grinding certain materials can create explosive dust. It is the employers responsibility to notify the user of acceptable dust levels.
• Grinding can cause sparks which can cause fires or explosions. It is the users responsibility to make sure the work area is free of flammable materials.
Report to your supervisor any condition of the tool, accessories, or operation you consider unsafe.
Air System
1 DROP/MIN.
20 SCFM
LUBRICATOR SETTING
MANDREL MOUNTING
Correctly Mounted
• Dynabrade Air Power Tools are designed to
operate at 90 PSIG (6.2 Bar/620 kPa) maximum
air pressure at the tool inlet, when the tool is
running. Use recommended regulator to control
air pressure.
• Ideally the air supply should be free from moisture.
Incorporating a refrigerated air dryer after the
compressor and drain valves at each tool station
(as shown) further reduces moisture from
condensation in the air supply.
Caution: The mandrel shall be inserted to the full depth of the gripping jaws of the collet. At least one-half the mandrel length shall be inserted into the collet to prevent
excessive overhang. Refer to accessory manufacturer's instructions for proper overhang. (Ref. ANSI B186.1)
Warning: Sliding the accessory’s mandrel out from the collet insert creates an “OVERHANG” condition. This practice is NOTrecommended, reducing the free speed of the tool
by reducing the air pressure must be done to avoid cutting tool breakage and serious injury.
Collet Cap
Collet Body
Collet Insert
➤
➤
➤
➤
➤
➤
Page 3
Maintenance Instructions
Important: A Preventative Maintenance Program is recommended whenever portable planetary geared die grinders are used.
• Use only genuine Dynabrade replacement parts to insure quality. To order replacement parts, specify Model#, Serial# and RPM of your air tool.
• All Dynabrade Rotary Vane air tools must be used with a Filter-Regulator-Lubricator to maintain all warranties. Dynabrade recommends the following:
11411 Air Filter-Regulator-Lubricator (FRL) – Provides accurate air pressure regulation and two stage filtration of water contaminants. Operates 55
SCFM/1,558 LPM @ 100 PSIG with 1/2" NPT female ports.
• Dynabrade recommends one drop of air lube per minute for each 20 SCFM (example: if the tool specification states 40 SCFM, set the drip rate on the
filter-lubricator to 2 drops per minute). Dynabrade Air Lube (P/N 95842: 1 pt 473 ml) is recommended.
• Lubricate the planetary gears through the grease fitting(s) located in the gear/planetary cover. Apply 2-3 plunges* for every 50 hours of use, to achieve
maximum gear life. (*order 95542 Grease and 95541 Gun)
Routine Preventative Maintenance:
• DO NOT
disassemble the governor for any reason. Reorder correct speed – governor assembly (See Assembly Breakdown) and recheck free speed of
tool with a tachometer.
• Mineral spirits are recommended when cleaning the tool and parts. Do not clean tool or parts with any solvents or oils containing acids, esters,
ketones, chlorinated hydrocarbons or nitro carbons.
• DO NOT
clean or maintain tools with chemicals that have a low flash point (example: WD-40®).
• A Motor Tune-Up Kit (P/N 96532) is available which includes high wear and medium wear motor parts.
• Air tool labels must be kept legible at all times, if not, reorder label(s) and replace. User is responsible for maintaining specification information i.e.:
Model#, S/N, and RPM. (See Assembly Breakdown)
• Blow air supply hose out prior to initial use.
• DO
NOT carry tool by air hose or near the tool throttle lever.
• Visually inspect air hoses and fittings for frays, visible damage and signs of deterioration. Replace damaged or worn components.
• Periodically remove the collet insert and clean the inside diameter and slots from debris to keep accessories secure and reduce vibration.
• Refer to Dynabrade's Warning/Safety Operating Instructions Tag (Reorder No. 95903) for safety information.
After maintenance is performed on tool, add a few drops of Dynabrade Air Lube (P/N 95842) to the air line and start the tool a few times to lubricate air motor.
Check for excessive tool vibration.
Handling and Storage:
• Use of tool rests, hangers and/or balancers is recommended.
• Protect grinding wheels from exposure to water, solvents, high humidity, freezing temperatures and extreme temperature changes.
• DO
NOT USE
grinding wheels that have been dropped or show signs of cracks, nicks or other defects.
• Store accessories in protective racks or compartments to prevent damage.
Machine Specifications
3
Notice
All Dynabrade motors use the highest quality parts and metals available and are machined to exacting tolerances. The failure of quality pneumatic motors
can most often be traced to an unclean air supply or the lack of lubrication. Air pressure easily forces dirt or water contained in the air supply into motor
bearings causing early failure. Dirt and water often scores the cylinder walls and the rotor blades resulting in limited efficiency and power. Our warranty
obligation is contingent upon proper use of our tools and cannot apply to equipment which has been subjected to misuse such as unclean air, wet air or a
lack of lubrication during the use of this tool.
One Y ear Warranty
Following the reasonable assumption that any inherent defect which might prevail in a product will become apparent to the user within one year from the
date of purchase, all equipment of our manufacture is warranted against defects in workmanship and materials under normal use and service. We shall
repair or replace at our factory, any equipment or part thereof which shall, within one year after delivery to the original purchaser, indicate upon our
examination to have been defective. Our obligation is contingent upon proper use of Dynabrade tools in accordance with factory recommendations,
instructions and safety practices. It shall not apply to equipment which has been subject to misuse, negligence, accident or tampering in any way so as to
affect its normal performance. Normally wearable parts such as bearings, contact wheels, rotor blades, etc., are not covered under this warranty.
Model Motor Motor Sound Maximum Air Flow Spindle Air Pressure Weight Length Height
Number HP (W) RPM Level CFM/SCFM (LPM) Thread PSIG (Bars) Pound (kg) Inch (mm) Inch (mm)
52660 1 (744) 950 80 dB(A) 6/43 (1218) 1/2"-20 Male 90 (6.2) 3.5 (1.6) 13-3/4 (384) 1-7/8 (48)
52661 1 (744) 1,800 76 dB(A) 5/34 (963) 1/2"-20 Male 90 (6.2) 2.8 (1.3) 11-1/8 (284) 1-7/8 (48)
52662 1 (744) 3,400 80 dB(A) 6/43 (1218) 1/2"-20 Male 90 (6.2) 3.1 (1.4) 12-1/2 (317) 1-7/8 (48)
52663 1 (744) 4,500 80 dB(A) 6/41 (1161) 1/2"-20 Male 90 (6.2) 3.1 (1.4) 12-1/2 (317) 1-7/8 (48)
52680 1 (744) 950 80 dB(A) 6/43 (1218) 1/2"-20 Male 90 (6.2) 3.5 (1.6) 13-3/4 (384) 1-7/8 (48)
52681 1 (744) 1,800 76 dB(A) 5/34 (963) 1/2"-20 Male 90 (6.2) 2.8 (1.3) 11-1/8 (284) 1-7/8 (48)
52682 1 (744) 3,400 80 dB(A) 6/43 (1218) 1/2"-20 Male 90 (6.2) 3.1 (1.4) 11-1/8 (284) 1-7/8 (48)
52683 1 (744) 4,500 80 dB(A) 6/41 (1161) 1/2"-20 Male 90 (6.2) 3.1 (1.4) 11-1/8 (284) 1-7/8 (48)
Additional Specifications: Air Inlet Thread 3/8" NPT • Hose Size 3/8" or 10mm • Air Flow Rate Based At Max HP. • Air Pressure 90 PSIG Max
Page 4
G
1
Left Hand
Thread
1 50063 Collet Cap
2 Collet Insert
50013 1/4"
50016 6mm
3 50069 Collet Body
4 04032 Spindle Nut
5 53694 Planetary Cover
6 51971 Gear Casing
7 01041 Grease Fitting
(950 RPM - QTY 2)
8 04014 Set Screw
(950 RPM - QTY 2)
9 02552 (2) Bearing
(3) Bearing- 950 RPM Models
10 53165 Planetary Carrier
Planetary Gear
11 53193 3,400 RPM (2)
53195 4,500 RPM (2)
950 RPM (4)
12 04026 Needle Bearing (4)
Note: 950 RPM (8)
13 53182 Gear Shaft
14 53191 Ring Gear
15 53188 Spacer (950 RPM Only)
16 96498 Wave Spring
17 53673 Carrier (950 RPM Only)
18 53678 Gear Retainer Shaft (2)
(950 RPM Only)
19 95438 O-Ring
(1,800 - 4,500 RPM Mdls)
20 53620 Adapter
(1,800 - 4,500 RPM Mdls)
21 54520 Bearing
22 51951 Shim Pack
23 51922 Front Bearing Plate
24 96441 Pin
25 51927 Rotor Spacer
26 Rotor
53666 950 RPM
51977 1,800 & 3,400 RPM
51976 4,500 RPM
27 51926 Blade (4/pkg.)
28 51925 Cylinder
29 51923 Rear Bearing Plate
30 02057 Bearing
31 96445 Pin
32 51924 Gasket
33 Governor Assembly
51953 1,800 RPM
51933 950, 3,400 & 4,500 RPM
34 All Housings Include:
Warning & Specification Labels
53746 Housing - Model 52660
53747 Housing - Model 52661
53748 Housing - Model 52662
53749 Housing - Model 52663
53762 Housing - Model 52680
53763 Housing - Model 52681
53764 Housing - Model 52682
53765 Housing - Model 52683
35 96444 Pin
36 51949 Safety Lever Assembly
37 51946 Valve Stem Assembly
(Incl. 96443 O-Ring)
38 51945 Valve Seat
39* 51944 Tip Valve
40* 51943 Spring
41* 96442 O-Ring
42* 51940 Spacer
43* 53682 Gasket
44* 94528 Felt Silencer
45* 53686 Muffler Cap
46* 94924 Wave Spring
47* 53683 Spacer
48* 53681 Inlet Bushing
(Incl. 2 – 51938 Screens)
49 51942 Silencer
50 51941 Spring
51 51939 Silencer Plate
52 51937 Inlet Bushing
Index Key
No. Part # Description
53 00001180 Warning Label
54 00001181 Specification Label
Label Key
No. Part # Description
41*
42*
43*
44*
49
50
41
42
51
24
29
30
31
32
34
36
17
18
1
2
7
9
10
11
12
13
14
9
15
9
16
14
19
20
21
22
23
24
25
26
27
28
37
35
54
53
38
38*
40*
45*
46*
47*
17 N•m
T
35 N•m
T
2 N•m
T
35 N•m
T
35 N•m
T
35 N•m
T
1 Hp Planetary Geared Die Grinder
Complete Assembly
4
Adhesive: A8= Loctite #567
A
10
= Loctite #243
Torque: N•m x 8.85 = In. - lbs.
Grease: G
1
= Lubriplate 630 AA
Oil: O
1
= Air Lube
O
A
T
G
KEY
Note:All index numbers with an asterisk
are included in P/N 53655 Muffler Assembly.
Note: Shaded index numbers represent specific
parts for 950 RPM models.
G
1
G
1
A
8
G
1
A
8
A
10
A
10
O
1
O
1
O
1
A
10
A
10
A
8
7
8
8
4
3
6
5
11
12
33
52
48*
Page 5
Disassembly Instructions - 1 Hp Straight-Line Planetary Geared Die Grinders
Important: Manufacturer’s warranty is void if tool is disassembled before warranty expires.
Disconnect tool from power source before tool repair.
Motor Disassembly:
(The special repair tools referred to in the instructions can be obtained from dynabrade.)
1. Remove the collet assembly from the tool.
2. Fit the 51989 Repair Collar to the wrench flats on the aluminum part of the motor housing and secure the tool
in a vise.
3. Remove the gear casing/planetary cover from the housing.(Right Hand Threads)
4. Remove the 04014 Set Screw(s) and the planetary gear assembly(ies) from the gear casing/planetary cover.
5. Fasten the 96346 Bearing Separator between the 53191 Ring Gear and the rear 02552 Bearing. Place the
separator on the 96232 Arbor Press so that the threaded male spindle is pointing down. Use the largest
diameter end of the 96214 Bear ing removal tool to push against the planetary carrier and press the planetar y
carrier from the bearing.
6. Secure the 53165 Planetar y Carr ier in a soft aluminum or bronze jaw vise and remove the 04032 Spindle Nut.
7. Press the planetar y carr ier from the front 02552 Bearing.
Note: The following instructions only apply to the double planetary models.
Remove the 02552 Bearing and the 53673 Carrier from the 53694 Planetary Cover. Press the carrier from the
bearing by using the 96232 Arbor Press. Press the 53678 Shafts from the 53673 Carrier and remove the
53193 Gears. Remove the ring gear from the motor housing.
8. Remove the 96498 Wave Spring and the 53620 Adapter along with the 95438 O-Ring.
9. Pull the motor out of the housing.
10. Carefully hold the rotor stationary and remove the governor assembly with a flat blade screw driver.
(Left Hand Thread)
11. Fasten the 96209 Motor Repair Clamp around the 51925 Cylinder. Position the motor repair clamp on the table
of the arbor press so that the rotor pinion gear is pointing down. Use a 1/8" dia. dr ive punch as a press tool and
push the rotor out of the 02057 Bearing.
12. Remove the 02057 Bearing from the 51923 Rear Bearing Plate.
13. Press the rotor out of the 54520 Bearing. Also remove the 51922 Front Bearing Plate and the 51927 Spacer
from the rotor.
14. Remove the 54520 bearing and shims from the front bear ing plate.
Silencer Disassembly/Assembly:
Note: Refer to the exploded view of the tool on page 4 to identify the correct silencer assembly and parts.
Follow the view to determine the correct sequence of assembly, adhesive required, and torque specification.
Motor Disassembly Complete.
Assembly Instructions - 1 Hp Straight-Line Planetary Geared Die Grinders
Motor Assembly:
Important: Clean and inspect par ts before assembling.
(The special repair tools referred to in the instructions can be obtained from Dynabrade.)
1. Install the 51927 Spacer onto rotor.
2. Place a .004" thickness of shims into the 51922 Front Bearing Plate and install the 54520 Bear ing into
the bearing plate.
3. Use the 96232 Arbor Press and the 96244 Bearing Press Tool to install the front bearing/plate assembly onto
the front of the rotor.(The bearing press tool should push against the inner race of the bearing when it is
being installed onto the rotor.)
4. The clarence between the rotor and the front bearing plate can be checked with a .001" feeler gauge.The
clarence should be between .001" -.0015". If a change in the adjustment is required repeat steps 2-4 removing
or adding shims as required.
5. Once the proper rotor gap clarence is achieved, install the 51926 Blades (4) that have been lubricated with
95842 Dynabrade Air Lube.
6. Install the 51925 Cylinder over the rotor so that it will seat with the raised bearing plate boss. Also, align the pin
with the notch in the cylinder.
7. Peel the backing off the 51924 Gasket. Align and adhere it to the 51923 Rear Bearing Plate.
8. Place the 51923 Rear Bearing Plate over the bearing journal of the rotor so that the raised boss on the bear ing
plate will seat with the cylinder.Align the pin with the notch in the cylinder. Be sure that the air inlet opening in
the rear bearing plate aligns with the air inlet opening in the cylinder.If these do not align, then the cylinder
must be flipped end to end. (Repeat steps 6-8.)
(continued on next page)
Page 6
Assembly Instructions - (Continued)
Important: Manufacturer’s warranty is void if tool is disassembled before warranty expires.
Please refer to parts breakdown for part identification.
9. Use the 96232 Arbor Press and the 96243 Bearing Press Tool to install the rear bearing onto the rotor. Carefully
press the bearing until a snug fit is achieved between the bearing plates and cylinder. If the fit is too tight the
rotor will not turn freely. If the fit is too loose then the proper preload of the motor bearings will not be achieved.
(The bearing press tool should push against the inner race of the bearing when it is being installed onto the rotor.)
10. Apply a small amount of Loctite®#243 (or equivalent) to the male thread of the governor assembly
(Left Hand Thread) and install the governor onto the rotor. (Torque to 2 N•m/18 in.-lbs.)
11. Carefully install the motor assembly into the housing. Be sure to align and fit both of the 96445 Pins into the
slots in the housing.
12. Install the 95438 O-Ring onto th 53620 Adapter and place these into the housing.
13. Place the 96498 Wave Spring onto the 53620 Adapter. Note: On the double planetary models, the ring gear
replaces the 53620 Adapter and the 95438 O-Ring. The 96498 Wave Spring is installed in the gear
casing assembly.
Motor Assembly Complete.
Gear Casing and Planetary Cover Assembly:
1. Press the front 02552 Bearing onto the male thread front end of the 53165 Planetar y Carr ier.
2. Apply a small amount of Loctite®#243 (or equivalent) to the area of the male threads of the planetary carrier
where the 04032 Spindle Nut fastens. (Torque to 17 N•m/150 in.-lbs.)
3. Apply some of the 95542 Grease to the planetar y gears, needle bearings and shafts and install these onto
the planetary carrier.
4. Place the 53191 Ring Gear over this assembly so that the two notches face away from the 04032 Spindle Nut.
5. Press the second 02552 Bearing onto the rear of the planetary carrier until it touches the ring gear.
6. Install the planetar y carr ier assembly into the gear casing/planetary cover so that the notches in the ring gear
align with the grease fitting and set screw openings.
7. Apply a small amount of Loctite®#567 (or equivalent) to the threads of the 04014 Set Screw(s) and install.
Note:The following instructions only apply to the double planetary models.
Install the needle bearing into the planetary gear and slide the 53678 Gear Shaft through the planetary gear.
Next press the 53678 Gear Shaft into the planetary carr ier hole. (Apply a small amount of the 95542 grease
to these components during assembly.) Place the 96498 Wave Spring over the pinion gear of the carrier.
Press the 02552 Bear ing over the pinion trapping the 96498 wave Spring between the bearing and the
planetary gears. Slip the countered bored end of the 53665 Ring gear into the motor housing and against the
54520 Bear ing of the motor assembly. Install the planetary carrier assembly into the 53694 Planetary Cover.
Align the notches in the ring gear with the set screw hole. Apply a small amount of Loctite®#567 to the
threads of the motor housing and use the 50971 Lock Ring Tool to install the planetary cover onto the
housing.When threading the 53694 Planetary Cover onto the housing, install the 04014 Set Screw (with a
small amount of Loctite
®
#567 applied) once the notches in the ring gear are aligned. (The torque
specification for the planetary cover to the housing is 35 N•m/300 in.-lbs.)
Important: Carefully align the rotor pinion to the planetary gears when threading the planetar y cover onto the
housing. Do not force this assembly. Be sure that the output shaft always turns freely during this process.
8. Apply a small amount of Loctite®#567 (or equivalent) to the threads of the housing. Use the 50971 Lock Ring
Tool to carefully install the gear casing onto the housing.
Important: Carefully align the rotor pinion to the planetar y gears when installing the gear casing onto the
housing. Do not force this assembly. Be sure that the output shaft always turns freely during this process.
(Torque to 35 N•m/300 in.-lbs.)
9. Install the collet assembly.(Torque to 17 N•m/150 in.-lbs.)
Gear Casing and Planetary Cover Assembly Complete.
Tool Assembly Complete. Please allow 30 minutes for adhesives to cure before operating tool.
Important: Before operating, places 2-3 drops of Dynabrade Air Lube (P/N 95842) directly into inlet with throttle
lever depressed.Operate tool for 30 seconds to allow Air Lube to properly lubricate internal motor components.
Motor should now be tested for proper operation at 90 PSIG max.If tool operates at a higher RPM than marked on
the tool or if vibration and sound levels seem abnormal, the tool should be serviced to correct the cause before use.
Loctite®is a registered trademark of Loctite Corp.
6
Page 7
LEGEND
T Included in Tune-Up Kit.
X Type of wear, no other
comments apply.
L Easily lost. Care during
assembly/disassembly.
D Easily damaged during
assembly/disassembly.
R Replace each time tool is
disassembled.
This service chart is published as a guide to expectant life of component parts. The replacement levels are based on average tool
usage over one year. Dynabrade Inc. considers one year usage to be 1,000 hours or 50% of a man year.
Parts Common to all Models:
Preventative Maintenance Schedule
For All 1Hp Planetary Geared Die Grinders
Note: Please refer to page 4 of tool manual for specific part number.
Index Part Description Number High Wear Medium Wear Low Wear Non-Wear
# Number Required 100% 70% 30% 10%
1 50063 Collet Cap 1 X
2 See Note Collet Insert 1 X
3 50069 Collet Body 1 X
4 04032 Spindle Nut 1 X
5 53694 Planetary Cover 1 X
6 51971 Planetary Gear Casing 1 X
7 01041 Grease Fitting See Note D
8 04014 Set Screw See Note L
9 02552 Bearing See Note X
10 See Note Planetary Carrier 1 X
11 See Note Planetary Gear See Note X
12 See Note Needle Bearing See Note X
13 See Note Gear Shaft See Note X
14 See Note Ring Gear See Note X
15 53188 Spacer (950 RPM) 1 X
16 96498 Wave Spring 1 T, L
17 53673 Carrier (950 RPM) 1 X
18 53678 Gear Retaining Shaft 2 X
19 95438 O-Ring 1 T
20 53620 Adapter 1 X
21 54520 Bearing 1 T
22 51951 Shim Pack 1 T, L
23 51922 Front Bearing Plate 1 X
24
96441 Pin
1
X
25 51927 Rotor Spacer 1 T
26 See Note Rotor 1 X
27 51926 Blade (4/pkg.) 1 T
28 51925 Cylinder 1 X
29 51923 Rear Bearing Plate 1 X
30 02057 Bearing 1 T
31 96445 Pin 1 X
32 51924 Gasket 1 T
33 See Note Governor Assembly 1 X
34 See Note Housing 1 X
35 96444 Pin 1 T, L
36 51949 Safety Lock Lever Assembly 1 X
37 51946 Valve Stem Assembly 1 T
38 51945 Valve Seat 1 X
39 51944 Tip Valve 1 T
40 51943 Spring 1 X
41 96442 O-Ring 1 T, L
42 51940 Spacer 1 X
43 53682 Gasket 1 X
44 94528 Felt Silencer 1 T, R
45 53686 Muffler Cap 1 X
46 94924 Wave Spring 1 X
47 53683 Spacer 1 X
48 53681 Inlet Bushing
(Incl. 51933 Screen) 1 X
49 51942 Silencer 1 X
50 51941 Spring 1 X
51 51939 Silencer Plate 1 X
52 51937 Inlet Bushing (Incl. 51933 Screen) 1 X
7
96532 – 1 Hp. Motor Tune-Up Kit
Page 8
DYNABRADE, INC., 8989 Sheridan Drive • Clarence, NY 14031-1490 • Phone: (716) 631-0100 • Fax: 716-631-2073 • International Fax: 716-631-2524
DYNABRADE EUROPE S.àr.l., Zone Artisanale • L-5485 Wormeldange—Haut, Luxembourg • Telephone: 352 76 84 94 1 • Fax: 352 76 84 95 1
©DYNABRADE, INC., 2004 PRINTED IN USA
Visit Our Web Site: www.dynabrade.com Email: Customer.Service@Dynabrade.com
Reference Contact Information
1. American National Safety Institute – ANSI
25 West 43
rd
Street
Fourth Floor
New York, NY 10036
Tel: 1 (212) 642-4900
Fax: 1 (212) 398-0023
2. Government Printing Office – GPO
Superintendent of Documents
Attn. New Orders
P.O. Box 371954
Pittsburgh, PA15250-7954
Tel: 1 (202) 512-1803
3. European Committee for Standardization
Rue de Stassart 36
B - 1050 Brussels, Belgium
96532 Motor Tune-Up Kit
•
Includes assorted parts to help maintain
and repair motor.
01904 Drop-In Motor (950 RPM)
01888 Drop-In Motor (1,800 RPM)
01887 Drop-In Motor (4,500 RPM)
•
Allows quick and easy replacement.
No motor adjustments needed.
Dynaswivel
®
• Swivels 360° AT TWO PIVOT POINTS allowing the air hose to
drop directly to the floor while providing superb tool handling.
95461 – 3/8" NPT.
51989 Repair Collar
• Specially designed collar for use in vise to prevent damage
to valve body of tool during disassembly/assembly.
53163 Handle Assembly
53199 Collar
Bearing Press Tools
• Used to install bearings.
96243: For installing 02057 Bearing.
96244: For installing 01007 & 54520 Bearings.
53621 Over Hose Assembly
• Over Hose Assembly directs exhaust
away from operator.
• 50066 – 1/4" Collet Assembly.
• 50073 – 6mm Collet Assembly.
Dynabrade Air Lube
• Formulated for pneumatic equipment.
• Absorbs up to 10% of its weight in water.
• Prevents rust and formation of sludge.
• Keeps pneumatic tools operating longer
with greater power and less down time.
95842: 1pt. (473 ml)
95843: 1gal. (3.8 L)
Collet Inserts
•
50013 – 1/4"
•
50014 – 3/8"
•
50016 – 6mm
•
50039 – 8mm
Carbide Burr Kits
• Includes 12 burrs for grinding,
deburring and finishing metal.
93350 – 1/4" Kit
93380 – 6mm Kit
30335 Air Supply Hose
• 3/8 in. I.D. x 60 in. Wide air supply
hose, includes: 3/8 in. NPT male and
female threaded fittings.
95262 – 14mm open-end.
95281 – 19mm open-end.
96005 Male Plug
• Provides up to twice the air flow
compared to standard plug design.
• Plug has “ported” design to prevent
“starving” of the air tool.
95542 Grease 10 oz.
• Workable range 0˚F to 300˚F.
• High film strength; excellent resistance to water, steam, etc.
95541 Push-type Grease Gun
• One-hand operation.
Composite-Style Coupler
• Lightweight 1.4 oz. (.05 Kg), non-marring
composite material.
• Easy connect/disconnect by single
push-button action.
• Shock-proof, low-vibration, crush-resistant.
94960: 1/4" Female NPT
94980: 1/4" Male NPT
96209 Motor Repair Clamp
• Specially designed clamp to secure motor
cylinder before disassembly.
Special Repair Tools Used
(Not Pictured)
96346 – Bearing Separator
96232 – Arbor Press
Optional Accessories
®
DYNABRADE
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