TABLE OF CONTENTS Section Page # WARRANTY ------------------------------------------------------------------------------------------------------------ 4 GENERAL SPECIFICATIONS ------------------------------------------------------------------------------------- 5 GENERAL SAFETY RULES---------------------------------------------------------------------------------------- 7 WORK AREA -------------------------------------------------------------------------------------------------- 8 PERSONAL SAFETY ---------------------------------------------------------------------------------------- 8 TOOL USE AND CARE ------------------------------------------------------------------------------------- 8 SERVICE-------------------------------------------------------------------------------------------------------- 9 SAFETY DECAL PLACEMENT ----------------------------------------------------------------------------------10 DRILL STEEL AND BITS-------------------------------------------------------------------------------------------14 WARRANTY---------------------------------------------------------------------------------------------------14 GENERAL NOTES ------------------------------------------------------------------------------------------14 DRILL STEEL AND BITS IN STOCK -------------------------------------------------------------------15...
WARRANTY AND SERVICE AGREEMENT Minnich Manufacturing Co. warrants to the original purchaser that, if any part of the product proves defective in material or workmanship within one year from purchase, and is returned to Minnich Manufacturing Co. within 90 days after the defect is discovered, Minnich Manufacturing Co.
A-1C Single Drill, On Slab Unit Three position drilling with 48” unit: Horizontal, Vertical and 35 degree stitch Urethane filled tires 3-1 skew drilling standard Adjustable drill height and depth Dust collection is available Model A-1C-48 A-1C-36 A-1C-30 A-1C-24 .875” x 4.25”...
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A-2C Multiple Drill, On Slab Unit with Steering Three position drilling: Horizontal, Vertical and 35 degree stitch Urethane filled tires Larger oiler for easy maintenance Adjustable drill height, depth and centers Dust collection is available Model A-2C .875” x 4.25” Drill Steel Shank (22.2mm x 107.9mm) Drill Steel Length U.C.
GENERAL SAFETY RULES This manual contains NOTES, CAUTIONS, and WARNINGS. These MUST be followed to prevent the possibility of improper use, incorrect servicing, damaging the equipment, or personal injury. Read and comply with all NOTES, CAUTIONS and WARNINGS included in these instructions.
- WORK AREA – Keep your work area clean and well lit. Cluttered and dark areas invite accidents. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. - PERSONAL SAFETY - Stay alert, watch what you are doing and use common sense when operating a power tool.
SERVICE – DO NOT run the drill unit while you make adjustments and repairs unless the procedure is approved. Escaping fluid and air under pressure can have sufficient force to penetrate the skin causing serious personal injury. If injured by escaping fluid or air, see a doctor at once. Serious infection or reaction can develop if proper medical treatment is not administered immediately.
Minnich Manufacturing’s drill steel and bit warranty is limited to the warranty provided by the supplier. All warranty claims must be submitted to Minnich for evaluation and sent to the supplier for authorization.
Usage Calculation The calculations below are nominal and could vary depending on the hardness of the concrete, aggregates used and the possibility of bits hitting steel reinforcement. Whirly Bit, Taper Bit and “H” Thread Bit (B)Bit=180 holes x 9” B=1620” Number of bits needed = (number of holes x hole depth)/1620”...
A-1C A-2C Set-Up Procedure Lubricator – Make sure that the lubricator is full. See recommended lubricants below. Air Supply – Use a 3/4” hose to supply air to the drill unit. Install the drill steel and bit into the drill.
A-1C A-2C Operation Procedure 1. Lubricator – Make sure that the lubricator is full. See recommended lubricants. 2. Air Supply – Use a 3/4” hose to supply air to the drill unit. 3. Install the drill steel and bit into the drill.
TROUBLE SHOOTING AIR DRILL IF SYMPTOMS OF POOR PERFORMANCE DEVELOP, THE FOLLOWING CHART CAN BE USED AS A GUIDE TO DETERMINE THE PROBLEM. WHEN DIAGNOSING FAULTS IN OPERATION OF THE AIR DRILL, ALWAYS CHECK THAT THE COMPRESSOR IS SUPPLYING THE CORRECT SCFM AND AIR PRESSURE AS LISTED IN THE TABLE PROBLEM CAUSE REMEDY...
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TROUBLE SHOOTING AIR DRILL PROBLEM CAUSE REMEDY DRILL RUNS SLOW OR DOES NOT DRILL EFFECTIVELY NOT ENOUGH AIR REACHING ON MULTI DRILL UNITS, TURN OFF ONE OR TWO DRILL. IT SHOULD HAVE DRILLS. IF THE REMAINING DRILLS PICK UP SPEED, 100SCFM PER DRILL AND 110 PSI CHECK THE AIR COMPRESSOR.
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FIG. PART NUMBER DESCRIPTION 006483-00008 FITTING, LUB 1/4-28 TAPER STRAIGHT 012004-00000 BRAKE BAR 0A8366-00000 WELDM’T, BRAKE ARM 007246-00000 BRAKE HANDLE 003016-00044 GRIP, HANDLE 006036-2.500 HHCS, 1/4-20 X 2-1/2 GR.5 006534-1.750 PIN, SPRING 3/16 X 1-3/4 007235-00000 MOUNTING, SHAFT 006038-4.000 HHCS, 3/8-16 X 4 GR. 5 006108-00000 FLAT WASHER 3/8 USS 0A7245-00000...
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LIFT ASSEMBLY A-1C-48 FIG. PART NUMBER DESCRIPTION 005775-00000 PIN, PIVOT 006174-1.000 PIN, COTTER 1/8 X 1 0A8353-00000 CYLINDER ROD END ADJUSTER 005664-00000 CYLINDER, AIR 4 X 18 0A7960-00001 WELDM’T, HEIGHT ADJUSTMENT 007132-00000 COIL NUT 006535-1.250 PIN, SPRING 1/4 X 1-1/4 006038-1.250...
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NIPPLE, PIPE 3/4 CLOSE SCH 80 001864-00000 LUBRICATOR 010829-00005 FITTING, MALE ELBOW 5/32 TUBE TO 1/8 MALE NPT (A-1C-36, 30 & 24) 010829-00010 FITTING, MALE ELBOW 1/4 TUBE TO 1/4 MALE NPT (A-1C-48) 010829-00010 FITTING, MALE ELBOW 1/4 TUBE TO 1/4 MALE NPT (A-1C-36, 30 & 24)
PRESSURE REGULATOR MINNICH P/N 002880-00000 OPERATION A regulator is used in a compressed air system to maintain nearly constant outlet pressure despite changes in the inlet air pressure and changes in downstream flow requirements. Outlet pressure is controlled by the adjusting screw (1). clockwise rotation increases and counter- clockwise rotation decreases outlet pressure setting.
PRESSURE REGULATOR Minnich P/N 009626-00010 SPECIFICATIONS Fluid: Compressed air Maximum inlet pressure: 300 psig (20.7 bar) Temperature range: 0 to 175 F (-18p to 79 Air supply must be dry enough to avoid ice formation at temperatures below 35 F (2 Gauge ports: 1/4”...
Lubricator (007330-00000) Warning: DO NOT place plastic bowl unit in service without metal bowl guard installed. Plastic bowl units are sold only with metal bowl guards. To minimize the danger of flying fragments in the event of plastic bowl failure, the metal bowl guards should not be removed. If the unit is in service without the metal bowl guard installed, manufacturer’s warranties are void, and the manufacturer assumes no responsibility for any resulting loss.
40# Rock Drill (A-1C-48 & 36) A12230-00000 When ordering replacement parts you need to furnish the model and serial number of the drill tool. Specifications Net Weight 38lbs. (17.2kg) 2400 Blows Per Minute 7/8” x 4 1/4” (22.2mm x 107.9mm) Chuck Size 3/4”...
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FIG. PART # DESCRIPTION Wear 012230-00001 BACK HEAD CP 012230-00002 THROTTLE VALVE 012230-00003 THROTTLE VALVE HANDLE 012230-00004 THROTTLE VALVE PLUNGER 012230-00005 THROTTLE VALVE SPRING 012230-00006 THROTTLE VALVE BOLT 012230-00007 THROTTLE VALVE HEX NOT (M10) 012230-00008 THROTTLE VALVE SPRING WASHER 012230-00009 AIR CONNECTION TUBE (PT) 012230-0009N AIR CONNECTION TUBE (NPT)
30# Rock Drill A11104-00100 (A-1C-30) When ordering replacement parts you need to furnish the model and serial number of the drill tool. Specifications 29lbs. (13.2kg) Net Weight Blows Per Minute 2700 Chuck Size 7/8” x 3 1/4” (22.2mm x 82.6mm) 3/4”...
15# Rock Drill 0A9052-00000 (A-1C-24) When ordering replacement parts you need to furnish the model and serial number of the drill tool. Specifications 14.5lbs. (6.58kg) Net Weight 7/8” x 3 1/4” (22.2mm x 82.6mm) Chuck Size Air Inlet (NPT) 1/2” (12.7mm) Air Consumption 36cfm (1.02m3/min)
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FIG. PART # DESCRIPTION 009052-0000 WASHER 009052-0000 PLUNGER 009052-0000 009052-0000 009052-0000 RETAINER 009052-0000 VALVE 009052-0000 VALVE 009052-0000 PISTON 009052-0000 CYLINDER ASSEMBLY 009052-000 BEARING 009052-000 DRIVER 009052-000 CHUCK 009052-000 PAWL 009052-000 PLUNGER 009052-000 SPRING 009052-000 BEARING 009052-000 PLUNGER 009052-000 LEVER 009052-000 SPRING 009052-000 SLEEVE...
50# Rock Drill (A-2C) 0A9350-00000 When ordering replacement parts you need to furnish the model and serial number of the drill tool. Specifications Net Weight 51lbs. (23kg) 2300 Blows Per Minute 7/8” x 4 1/4” (22.2mm x 107.9mm) Chuck Size 3/4”...
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