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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.
Tool Intent: 

Pistol Grip Drills are used for drilling holes in wood, plastics, fiberglass, laminates, hard and soft materials, ceramics, aluminum and steel. An appropriate external

vacuum source is required that is suitable for material being processed.

Do Not use tool for anything other than intended applications.

Training: 

Proper care, maintenance, and storage of your tool will maximize performance.

• Employer's Responsibility  – Provide Pistol Grip Drill operators with safety instructions and training for safe use of tools and accessories.

Warning: 

Remove chuck key before turning on the tool. Side handle must be used for maximum control over torque reaction or kick-back on 500 & 1,000 RPM models.

(continued on next page)

Parts Page Reorder No. PD09•61

Effective December, 2009

Air Tool Manual – Safety, Operation and Maintenance

Models: 1/4" Drill Chuck

52903

– 500 RPM

52904

– 1,000 RPM

52905

– 2,400 RPM

52906

– 3,600 RPM

52907

– 5,500 RPM

SAFETY LEGEND

WARNING

WARNING

Read and understand tool manual before

work starts to reduce risk of injury to

operator, visitors, and tool.

WARNING

Eye protection must be worn at all times,

eye protection to conform to ANSI Z87.1.

WARNING

Respiratory protection to be used when exposed to

contaminant's that exceed the applicable threshold

limit values required by law.

WARNING

Some dust created by grinding, drilling, and other construction activities contain chemicals known to cause cancer, birth defects 
or other reproductive harm. Some examples of these chemicals are:

Lead from lead-based paints

Crystalline silica from bricks and cement and other masonry products

Arsenic and chromium from chemically treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: 
work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.

WARNING

Practice safety requirements. Work alert,

have proper attire, and do not operate tools under

the influence of alcohol or drugs.

WARNING

Ear protection to be worn when exposure to sound,

exceeds the limits of applicable Federal, State or

local statues, ordinances and/or regulations.

WARNING

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.

SAVE THIS DOCUMENT, EDUCATE ALL PERSONNEL

FIND THE MOST CURRENT OFFERING OF SUPPORT DOCUMENTS AND ACCESSORIES @ WWW.DYNABRADE.COM

.4 hp Vacuum Drill

Pistol Grip / Central Vacuum / Rear Exhaust

Model 52906 Shown

1-1/4" Threaded
Vacuum Port

Summary of Contents for 52903

Page 1: ...use cancer birth defects or other reproductive harm Some examples of these chemicals are Lead from lead based paints Crystalline silica from bricks and cement and other masonry products Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area an...

Page 2: ...nimum 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 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 ...

Page 3: ...9 Spacer 1 T 25 See pg 4 Rotor 1 X 26 01480 Vane 4 Pkg 1 T 27 01476 Cylinder 1 X 28 50767 Pin 1 T 29 02673 Rear Bearing Plate 1 X 30 02696 Bearing 1 T 31 97807 O Ring 1 T 32 01041 Grease Fitting 1 X 33 See pg 4 Housing 1 X 34 50936 Pin 1 X 35 52942 Grip 1 X 36 01696 Felt Ring See pg 4 T 37 52958 Aspirator 1 X 38 52960 Sleeve Adapter 1 X 39 01464 Seal 1 T 40 01472 Tip Valve 1 T 41 52943 Spring 1 T ...

Page 4: ...ific model tool 9 Use the 96239 Bearing Press Tool and arbor press to install the 02698 Bearing onto the spindle carrier Place the press tool against the inside race of the bearing For Models 52903 04 05 06 07 10 Install planet gears and pins into the carrier s Use external retaining ring pliers to install the 97443 Retaining Ring 11 Install ring gear into the housing so that the notches in the ri...

Page 5: ...r Motor Chuck Sound Air Flow Rate Air Pressure Spindle Thread Weight Length Height Number hp W RPM Size Level SCFM LPM PSIG Bars Size Pound kg Inch mm Inch mm 52903 4 310 500 1 4 76 dB A 23 651 90 6 2 3 8 24 3 7 1 7 10 6 268 11 8 300 52904 4 310 1 000 1 4 80 dB A 25 708 90 6 2 3 8 24 3 7 1 7 10 6 268 11 8 300 52905 4 310 2 400 1 4 77 dB A 22 623 90 6 2 3 8 24 3 1 1 4 10 6 268 11 8 300 52906 4 310 ...

Page 6: ...Tip Valve 41 52943 Spring 42 97444 Retaining Ring 43 52959 Inlet Adapter Incld 56022 Screen 44 50784 Set Screw 45 52955 Trigger Assembly Incld 55035 50936 and 52952 46 96077 O Ring 52905 47 52984 Baffle 52905 48 52753 Flexible Vacuum Drill Shroud 49 97029 Clamp 50 02276 Shroud Base 51 53219 Locking Knob 52 40029 Cam Lock 53 96071 Set Screw 2 54 52982 Sleeve 52905 06 07 52983 Sleeve 52903 04 55 319...

Page 7: ...ten the vise 16 Use a 19 mm socket and wrench to remove the inlet bushing turning it counterclockwise Remove muffler parts 17 Use a 3 32 diameter drive punch to remove the 50936 Pin and 52955 Trigger Assembly Remove pin from right side of housing to left side 18 Secure the hex portion of the air inlet bushing in a vise with aluminum or bronze jaws and use an adjustable wrench to access the valve a...

Page 8: ...onal Standards Institute ANSI 3 European Committee for Standardization 25 West 43rd Street Rue de Stassart 36 Forth Floor B 1050 Brussels Belgium New York NY 10036 Tel 1 212 642 4900 Fax 1 212 398 0023 2 Government Printing Office GPO 4 Power Tool Institute Inc Superintendent of Documents P O Box 818 Attn New Orders Yachata Oregon 97498 0818 P O Box 371954 Tel 1 503 547 3185 Pittsburgh PA 15250 79...

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