Dynabrade 51479, 51482, 51474, 51476 User Manual
29
Always operate, inspect and maintain this tool in accordance with the Safety Code for portable air tools
(ANSI B186.1) and any other applicable safety codes and regulations. Please refer to Dynabrade's
Warning/Safety Operating Instructions for more complete safety information.
Air Motor and Machine Parts
Parts Page Reorder No. PD98•35
Effective October, 1998
Wet Sander/Polisher
Index Key
No. Part Description
1 Optional Pads on pg. 4
2 50963 Retainer
3 50899 Shaft Seal
4 50983 Spindle Assy.
5 50887 Bearing
6 50997 Bevel Gear - 2,000 RPM
50996 Bevel Gear - 3,100 RPM
7 96306 Shim (as req.)
8 96307 Shim (as req.)
9 02048 Wick
10 96325 Shell Bearing
11 53163 Handle Assy.
12 50981 Head Assy.
13 96324 Shaft Seal
14 50988 Inlet Block
15 50989 Spindle Cover
16 95759 Close Nipple
17 95760 Coupling
18 95761 Needle Valve
19 95841 Ferrule (Inc. 95761 Valve)
20 95939 Retaining Ring
21 52158 Bevel-Pinion-2,000 RPM
52124 Bevel-Pinion-3,100 RPM
22 01266 Bearing
23 50435 Key
24 50985 Pinion Shaft
25 07154 Shim (as req.)
26 07155 Shim (as req.)
27 50986 Spacer
28 53551 Coupling Nut
29 50951 Coupler
30 50956 Adapter
31 50987 Lock Ring
32 50970 Gear Casing Assy.
33 04014 Screw
34 02552 Bearing
35 53191 Ring Gear
36 53180 Planetary Carrier
37 53193 Gear
38 53182 Gear Shaft
39 01007 Bearing
40 01121 Shim Pack (as req.)
41 53183 Front Bearing Plate
42 01010 Spacer
43 04017 Rotor
44 01185 Blades (4)
45 01028 Cylinder
46 50767 Pin
47 01721 Rear Bearing Plate
48 02649 Bearing
49 53175 Collar
50 51489 Housing - 51474
51491 Housing - 51476
51494 Housing - 51479
51497 Housing - 51482
51 01477 Valve Stem
52 01089 Throttle Lever
53 01017 Spring Pin
54 95558 Retaining Ring
55 95730 O-Ring
56 01247 Speed Regulator
57 01024 O-Ring
58 01464 Seal
59 01472 Tip Valve
WARNING
!
Models:
51474 – 2,000 RPM Basic
51476 – 3,100 RPM Basic
51479 – 2,000 RPM Deluxe
51482 – 3,100 RPM Deluxe
L
T
O
Loctite/Hernon:
L
2
= Loctite #567 L4= Loctite #567
Torque: N•m x 8.85 = In. - lbs. T
2
= 17 N•m, T3= 23 N•m,
T
4
= 28 N•m, T5= 34 N•m, T6= 45 N•m
G
Oil
95542 Grease
W
94848 Gear Oil
O
L
4
T
3
KEY
1
2
3
4
5
7
8
9
10
12
14
6
15
16
17 18 19
11
20
21
22
24
23
25
26
27
22
28
13
30
31
32
33
34
35
36
37
38
34
39
41
40
42
43
44
45
47
46
48
49
50
52
53
51
54
55
56
57
58
59
60
61
62
63
64
65
66
67
69
68
71
Index Key
No. Part Description
60 01468 Spring
61 01564 AIr Control Ring
62 95438 O-Ring
63 95711 Retaining Ring
64 94521 Muffler Base
65 94528 Muffler
66 94522 Muffler Cap
67 95375 O-Ring
68 94526 Spacer
69 94523 Inlet Adapter
70 94519 Muffler Assy.
71 96323 Air Line Assy.
72 95884 Hose Clamp
73 96302 Exhaust Hose Assy.
74 96303 Basic Wet Assy.
75 95955 Hose
76 95962 Quick Coupler
77 95963 Female Connector
78 95965 Valve Assy .
79 95964 Hose Bib Assy.
80 96298 Deluxe Water Line Assy.
81 95579 Waterline Assy.
82 95430 Fitting
Deluxe Models incl. #74 and #80
70
80
T
5
L
4
W
L
4
L2T
2
L
4
L
4
L
2
T
2
T
6
L
4
L
4
T
4
G
L
4
O
72
73
74
75
76
77
78
79
81
Important Operating, Maintenance and Safety Instructions
Carefully read all instructions before operating or servicing any Dynabrade® Abrasive Power Tool.
Warning: Hand, wrist and arm injury may result from repetitive work motion and overexposure to vibration.
Important: All Dynabrade air tools must be used with a Filter-Regulator-Lubricator to maintain all warranties.
Operating Instructions:
Warning: Eye, face and body protection must be worn while operating power tools. Failure to do so may result in serious injury or death. Follow safety
procedures posted in workplace.
1. With power source disconnected from tool, securely fasten abrasive/accessory on tool.
2. Install air fitting into inlet bushing of tool. Important: Secure inlet bushing of tool with a wrench before attempting to install the air fitting to avoid damaging
valve body housing.
3. Connect power source to tool. Be careful not to depress throttle lever in the process.
4. Check tool speed with tachometer. If tool is operating at a higher speed than the RPM marked on the tool or operating improperly, the tool should be
serviced to correct the cause before use.
Maintenance Instructions:
1. Check tool speed regularly with a tachometer. If tool is operating at a higher speed than the RPM marked on the tool, the tool should be serviced to correct
the cause before use.
2. Some silencers on air tools may clog with use. Clean and replace as required.
3. All Dynabrade air motors should be lubricated. Dynabrade recommends one drop of air lube per minute for each 10 SCFM (example : if the tool
specification state 40 SCFM, set the drip rate of your filter-lubricator at 4 drops per minute). Dynabrade Air Lube (P/N 95842: 1pt. 473ml.) is recommended.
4. An air line filter-regulator-lubricator must be used with this air tool to maintain all warranties. Dynabrade recommends the following: 11411 Air Line Filter-
Regulator-Lubricator — Provides accurate air pressure regulation, two-stage filtration of water contaminants and micro-mist lubrication of pneumatic
components. Operates up to 100 CFM @ 100 PSI has 1/2" NPT female ports.
5. Lubricate planetary gears through 50970 Gear Casing grease fitting ever 50 hours of use for maximum gear life.
6. Lubricate 02048 Wick System through angle gear head grease fitting ever 8 hours of use for maximum gear life. Important: Use recommended
angle gear oil only for wick system. Do not contaminate wick with any other oil or grease product (Order 95848 Gear Oil and 95541 Gun).
7. Use only genuine Dynabrade replacement parts. To reorder replacement parts, specify the Model #, Serial # and RPM of your machine.
8. A motor tune-up kit (P/N 96178) is available which includes assorted parts to help maintain motor in peek operating condition. Please refer to Dynabrade's
Preventative Maintenance Schedule for a guide to expectant life of component parts.
9. A lubrication accessory kit (P/N 50790) is available which contains Dynabrade's 95542 Grease, 95541 Lubrication Gun (2) and 95848 Gear Oil.
10. Mineral spirits are recommended when cleaning the tool and parts. Do not clean tool or parts with any solvents or oils containing acids, esters, keytones,
chlorinated hydrocarbons or nitro carbons.
Safety Instructions:
Products offered by Dynabrade should not be converted or otherwise altered from original design without expressed written consent from
Dynabrade, Inc.
•
Important: User of tool is responsible for following accepted safety codes such as those published by the American National Standards Institute (ANSI).
•
Operate machine for one minute before application to workpiece to determine if machine is working properly and safely before work begins.
•
Always disconnect power supply before changing abrasive/accessory or making machine adjustments.
•
Inspect abrasives/accessories for damage or defects prior to installation on tools.
•
Please refer to Dynabrade’s Warning/Safety Operating Instructions Tag (Reorder No. 95903) for more complete safety information.
•
Warning: Hand, wrist and arm injury may result from repetitive work, motion and overexposure to vibration.
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. It 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.
2
(PD98•35)
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 Length Height Weight Air Flow Rate Sound Motor Motor Air Pressure
Number Inch (mm) Inch (mm) Pound (kg) SCFM (LPM) Level HP (W) RPM PSI (BArs)
51474 13.0" (330) 4"(102) 5.4 (24) 43 (1218) 82 dBA .7 (522) 2,000 90 (6.2)
51476 13.0" (330) 4"(102) 5.4 (24) 43 (1218) 80 dBA .73 (522) 3,100 90 (6.2)
51479 13.0" (330) 4.6"(117) 7.9 (35) 43 (1218) 79 dBA .7 (522) 2,000 90 (6.2)
51482 13.0" (330) 4.6"(117) 7.9 (35) 43 (1218) 79 dBA .73 (522) 3,100 90 (6.2)
Additional specifications: Air Inlet Thread 1/4" (6 mm) NPT • Hose Size 3/8" (9 mm)
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