1” SDS ROTARY HAMMER
Model 47606
SET up AnD OpERATing inSTRucTiOnS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THiS MAnuAl.
Copyright© 2002 by Harbor Freight Tools®. All rights reserved. No portion of this manual or
any artwork contained herein may be reproduced in any shape or form without the express
written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised 07c, 07j
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damaged, have them repaired by an authorized technician. The handles must be kept clean,
dry, and free from oil and grease at all times.
10.
11.
Disconnect power. Unplug tool when not in use.
Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are
removed from the tool or machine work surface before plugging it in.
12.
13.
Avoid unintentional starting. Be sure the switch is in the Off position when not in use and
before plugging in. Do not carry any tool with your finger on the switch, whether it is plugged in
or not.
The Rotary Hammer must be switched off and unplugged before changing the Knob
setting. Attempting to change the Knob setting while the motor is engaged will result in abrupt
bit rotation and can cause serious personal injury and/or property damage.
14.
15.
Stay alert. Watch what you are doing, use common sense. Do not operate any tool when you
are tired.
Take caution as some woods contain preservatives such as copper chromium arsenate
(ccA) which can be toxic. When drilling or chiseling these materials extra care should be
taken to avoid inhalation and minimize skin contact.
16.
check for damaged parts. Before using any tool, any part that appears damaged should be
carefully checked to determine that it will operate properly and perform its intended function.
Check for alignment and binding of moving parts; any broken parts or mounting fixtures; and
any other condition that may affect proper operation. Any part that is damaged should be
properly repaired or replaced by a qualified technician. Do not use the tool if any switch does
not turn On and Off properly.
17.
18.
guard against electric shock. Prevent body contact with grounded surfaces such as pipes,
radiators, ranges, and refrigerator enclosures.
Replacement parts and accessories. When servicing, use only identical replacement parts.
Use of any other parts will void the warranty. Only use accessories intended for use with this
tool. Approved accessories are available from Harbor Freight Tools.
19.
20.
Do not operate tool if under the influence of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there
is any doubt, do not operate the tool.
use proper size and type extension cord. If an extension cord is required, it must be of the
proper size and type to supply the correct current to the tool without heating up. Otherwise,
the extension cord could melt and catch fire, or cause electrical damage to the tool. This tool
requires use of an extension cord of 0 to 10 amps capability (up to 50 feet), with wire size rated
at 18 AWg. Longer extension cords require larger size wire. If you are using the tool outdoors,
use an extension cord rated for outdoor use (signified by “WA” on the jacket).
21.
22.
Maintenance. For your safety, maintenance should be performed regularly by a qualified
technician.
WARning: Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities, contain chemicals known [to the State of California] to cause cancer, birth
defects or other reproductive harm. Some examples of these chemicals are:
REV 07c
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- Lead from lead-based paints
- Crystalline silica from bricks and cement or 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. (California Health & Safety Code § 25249.5, et seq.)
23.
The warnings, cautions, and instructions discussed in this instruction manual cannot cover all
possible conditions and situations that may occur. It must be understood by the operator that
common sense and caution are factors which cannot be built into this product, but must be
supplied by the operator.
note Performance of this tool (if powered by line voltage) may vary depending on variations in local
line voltage. Extension cord usage may also affect tool performance.
unpacking
When unpacking, check to make sure the parts listed on page 8 are included. If any parts are
missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon
as possible.
VibRATiOn HAzARD
This tool vibrates during use. Repeated or long-term exposure to vibration may cause
temporary or permanent physical injury, particularly to the hands, arms and shoulders. To
reduce the risk of vibration-related injury:
1.
2.
Anyone using vibrating tools regularly or for an extended period should first be examined by
a doctor and then have regular medical check-ups to ensure medical problems are not being
caused or worsened from use. Pregnant women or people who have impaired blood circulation
to the hand, past hand injuries, nervous system disorders, diabetes, or Raynaud’s Disease
should not use this tool. If you feel any medical or physical symptoms related to vibration (such
as tingling, numbness, and white or blue fingers), seek medical advice as soon as possible.
Do not smoke during use. Nicotine reduces the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3.
4.
5.
6.
Wear suitable gloves to reduce the vibration effects on the user.
Use tools with the lowest vibration when there is a choice between different processes.
Include vibration-free periods each day of work.
To reduce vibration, maintain the tool as explained in this manual. If any abnormal vibration
occurs, stop use immediately.
REV 07j
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Assembly
Refer to Figure 1.
1.
Fit the Handle band (508) over the front of the housing above the Bit Sleeve and screw
the Handle (506) clockwise to secure. At this point do not fully tighten.
2.
Rotate the Handle (506) around the tool until it rests on a flat spot on the housing, on the
side you prefer.
note: The Drill Stop (504) is used as a guide when doing repetitive drilling (not chiseling) at
the same depth.
3.
With the Handle (505) still loose, insert the Drill Stop (504) into the hole at the Handle
base. Fully tighten the Handle (505) clockwise. If you wish to reposition the Handle (505)
or the Drill Stop (504), loosen the Handle (505) by turning it counterclockwise.
FiguRE 1
Handle Band (508)
Bit Sleeve
Handle (505)
Drill Stop (504)
REV 07j
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inserting and removing bits.
1.
2.
Make sure the Rotary Hammer is not plugged in.
To insert a bit, pull back and retract the Bit Sleeve (see FIGURE 2) and insert the bit. Slide
the two notches on the bit into the notched receptacle and then release the Bit Sleeve. Put
on gloves and then tug on the bit forcefully, making sure it is in the Bit Sleeve firmly.
3.
When removing a bit, make sure the bit has had a chance to cool. Wear gloves and grip
the bit with one hand, and pull back on the Bit Sleeve, retracting it away from the bit. Pull
out the bit.
note For safe, optimal performance, keeps bits and chisels properly sharpened. Never use a
dull, cracked, or chipped bit.
Bit Sleeve
note: Break Point (Bull) Bits and cold
chisels are to be used when the Selector
Switch is in the hammering position only.
Using these bits/chisels with the Selector
Switch in the hammer/drill position will
result in unexpected tool performance.
FiguRE 2
Switch (86)
Knob (701)
Main Handle (89)
FiguRE 3
Bit Sleeve
Bit
Handle
(505)
Drill Stop (504)
Brush Cap (70)
REV 07c; 07j
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Operation
note: Make sure unit is not plugged in.
Dust
Cap
Fig
note: If you wish, you may attach a Dust cap for overhead
drilling applications. To do so, after you install a bit,
before you tighten the Bit Sleeve, slide the Dust cap
over the bit and adjust the Drill Stop so that the curve on
the end of the Drill Stop secures the Dust cap. Tighten
the Handle. See FIGURE 4.
Curved end
of Drill Stop
note: Do not plug in the Rotary Hammer until the bit is loaded, the
Drill Stop is set, and the Knob selection is complete ( See Below).
1.
Following the method on page 4, number 3, under assembly,
adjust the Drill Stop to the desired length.
note: The Drill Stop will only work when the Handle is on either side or the top of the Rotary
Hammer. The body of the Hammer will interfere with the Drill Stop if the Handle is positioned
on the bottom of the Hammer.
Warning: When setting the Knob, the Rotary Hammer must be switched off and be
unplugged. Attempting to change the Knob setting while the motor is engaged will
result in abrupt bit rotation and can cause serious personal injury and/or property
damage. See setting the Knob below.
2.
Set the Knob to either hammer/drill or hammer. See FIGURE 3 on page 5.
Hammer Setting: To hammer, turn the Knob so the “T” setting is lined up with the mark
on the housing.
Hammer/Drilling: To hammer/drill, set the Knob so the “IT” setting is lined up with the mark
on the housing.
note: When setting the Knob make sure it positively clicks into the desired position. if
Knob does not click into place, it could slip out of position resulting in unexpected
tool performance.
3.
4.
Install the desired bit or chisel. Only when hammer/drilling use the Drill Stop.
If hammer/drilling, make sure the Drill Stop and Dust cap, if needed, are installed
properly.
5.
6.
7.
The Handle should be rotated to the proper position for the application.
While keeping you finger off of the Switch, plug in the unit.
When you are ready to begin, make sure you have a firm grip on both the Main Handle
and the Handle. Always operate the Rotary Hammer with both hands, holding it securely.
The Rotary Hammer puts out extreme torque and will kick back and act with great force.
8.
Turn on the Switch and allow the Rotary Hammer to run without a load for approximately
one minute as the unit self-lubricates. Release the Switch, stopping the Hammer. Position
the chisel or bit on the workpiece and start the Hammer again.
9.
After using the Rotary Hammer, release the Switch to turn off the unit.
REV 03d, 07c
SKU 47606
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Troubleshooting and Maintenance
note: Other than changing or cleaning the carbon brushes, all internal repairs should be done
by a qualified service technician.
problem
Motor doesn’t rotate when switched
on.
cause
1. Disrupted power
Action
1. Check Power Supply
2. Repair switch
2. Poor switch contact
3. Armature or field coil burnt
4. Broken Stator Coil
3. Change coil
4. Replace Stator coil
5. Replace carbon brushes
5. Worn carbon brushes
Abnormal motor noise, rotates slowly, Overload due to excessive drilling
Reduce drill depth or
does not rotate
depth or pressure
pressure/decrease force
Partial short circuit
Low main voltage
Overheated gearbox
Short circuit or open circuit armature
Main power voltage too low
1. Overload, dull bit
Repair or change armature
Adjust main power voltage
1. Reduce load, sharpen or
replace bit
2. Damp coils
2. Dry coils
3. Incorrect fitting
3. Repair/change armature
4. Adjust voltage
1. Repair armature
2. Clean armature
4. Decrease in voltage
Sparking
1. Short circuit or break at armature
2. Surface of armature dirty or rough
note: Rotary Hammer must be unplugged before performing service and maintenance.
general maintenance:
1.
Clean the work surface with a dry brush or clean cloth. Keep moving parts lightly greased.
Always keep motor and vent areas free of dust and debris.
2.
Grease the tool after 50 working hours, or more frequently with increased use.
3.
Remove drill bits or chisels for storage.
changing carbon brushes:
1.
2.
Using a screwdriver, remove the brush cap (70). See FIGURE 3 on page 5.
Be careful, the brush Holder (68) may spring out. If it does not spring out easily, gently
use the tip of the screwdriver to remove it. Examine the brush (69); the surface should
be smooth and clean. If scratch marks appear, or it is broken, replace immediately with an
approved replacement brush from Harbor Freight Tools.
3.
4.
If the brush (69) isn’t damaged, but only dirty, clean it off with a pencil eraser. Gently rub
it until the dirt is removed. Remove the eraser dust from the brush (69) when you are
through cleaning it.
Gently reinstall the brush (69) into the brush Holder (68) and screw the brush cap (70)
back on the unit and tighten.
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parts list
part
Description
O-ring
part
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
Description
Spring
part
Description
1
2
3
4
5
6
302 Switch Handle
71* Air Baffle
72* Stator
Steel Ball
Cylinder
Flat Pin
Striker
Label
Small Cone Gear
Oil Seal
74* Motor Casing
75* Bolt
Bearing
O-ring
Washer
76* Bottom Cap
77* Tap Bolt
706 Spring
Pull Board
Clutch Washer
Second Gear
Dish Form Spring
Specialty Nut
Bearing
7
Cone Gear
Steel Retaining Ring
78
79
80
85
86
89
90
91
92
Tap Bolt
Handle Cap
Handle Buff
Capacitor
Switch
7D
511 Oil Bearing
8
Piston
9
Piston Pin
Connecting Rod
Needle Bearing
O-ring
10
11
12
13
14
16
18
Crankcase
Crankshaft
Steel Ball
Main Handle
Washer
Bolt
O-ring
303 Lifting Post
Tap Bolt
Oil Seal Cap
Nameplate
Bolt
50
52
53
54
55
56
Bearing
93** Cable
Bearing Cap
Spring Washer
Bolt
97
Cable Clamp
98** Cable Sheath
701 Knob
19* Spring Washer
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Cylinder Case
Cylinder Cap
Oil Seal
First Gear
Needle Bearing
702 Spring
703 Steel Ball
704 Retainer Ring
705 Knob Seat
501 Dust Cap
503 Packing Carton
504 Drill Stop
57* Gear Case
58* Bearing
60* Rotor
Washer
Ball Bearing
Urethane Ring
Plastic Duct
Front Cap
O-ring
61* Tap Bolt
63
Inductor
64* Down Lead Spring
65* Bearing
505 Handle
506 Chuck Ring
507 Handle Clip
508 Handle Band
509 Square Toes Bolt
100* Motor Assembly
101** Cable Assembly
Slider
66* Washer
Steel Ball
67* Bolt
Guard Ring Sleeve
O-ring
68* Brush Holder
69* Brush
O-ring
70* Brush Cap
301 Retainer Ring
Second Striker
Replacement parts with asterisk are not available individually. You must purchase either the #100 Motor Assembly
or the #101 Cable Assembly.
* #100 Motor only sold as a replacement assembly.
** #101 Cable only sold as a replacement assembly.
SKU 47606
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Assembly Drawing
701
702
703
704
1
2
3
4
504
503
501
511
705
5
6
706
509
7
508
7D
507
18
506
505
19
20
6
11
21
8
9
22
10
12
23
14
13
24
33
16
25
27
26
28
29
30
47
36
37
31
48
49
32
34
38
30
35
39
40
50
57
58
51
52
53
41
42
43
54
55
42
41
44
60
61
56
45
46
89
71
90
19
91
72
85
86
64
65
66
73
66
80
92
93
79
78
74
19
67
68
69
98
75
76
77
70
77
97
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plEASE READ THE FOllOWing cAREFullY
THE MANUFACTURERAND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUALASAREFERENCE
TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF
ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR
SHE IS QUALIFIED TO REPLACEANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURERAND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF
HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR
HER INSTALLATION OF REPLACEMENT PARTS THERETO.
note: Some parts are listed and shown for illustration purposes only and are not available individually
as replacement parts.
liMiTED 90 DAY WARRAnTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and
durability standards, and warrants to the original purchaser that this product is free from defects in materials
and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to
damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside
our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We
shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special
or consequential damages arising from the use of our product. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to
you. THIS WARRANTY IS EXPRESSLY IN LIEU OFALLOTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation
charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the
merchandise. If our inspection verifies the defect, we will either repair or replace the product at our
election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a
replacement. We will return repaired products at our expense, but if we determine there is no defect, or
that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of
returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from
state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
SKU 47606
For technical questions, please call 1-800-444-3353.
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