Macdonald DM5 User manual

Chipping
Hammer
DM5
Specification
& Parts List
MODEL WEIGHT WEIGHTED ACCELERATION NOISE LEVEL NOISE LEVEL
ACCELERATION LEVEL LEVEL PRESSURE POWER
KG lbs M/sec/sec db db(A) db(A)
DM5 4.8 10.63 22.42 147.01 85 105
Pneumatic Tool Test Results:
Distributed By :
MACDONALD AIR TOOLS LIMITED
College Milton South, East Kilbride, Glasgow G74 5LS, UK. TEL : [phone] FAX : [phone]
MACDONALD AIR TOOL CORPORATION
242 WEST STREET, SO. HACKENSACK, N.J. 07606 USA TEL : + 1 201 - 488 - 4742 FAX : +1 201 - 488 - 5120
Parts & Service Hotline USA Only : 1 - 800 - 328 - 7773
DM52011V2.0
CHUCK SIZE WEIGHT LENGTH BORE STROKE FRQCY AIR CONS REC.WRKG AIR HOSE HOSE FITTING
model ins mm lbs kg ins mm ins mm ins mm bpm hz cfm L/sec psi bar ins mm
DM5/S (hex ) 3/4 19 .63 4.8 15.75 400 1.125 28 2.4 61 2600 43 16 7 90 6 1/2 12.5 1/2NPT
Notes:1. The weights shown include a silencer
Specifications:
EC DECLARATION OF CONFORMITY : Machinery Safety
We Macdonald Air Tools Ltd., East Kilbride, Scotland declare under our sole responsibility that the product to which this declaration relates, conforms to the requirements of the Council
Directive of the 23rd July 1998 on the approximation of the laws of the Member States relating to the Machinery (98/37/EC) and any subsequent amendments.
Other Applicable Directives : 84/537/EEC, 79/113/EEC - Applicable Standards : EN 28662-5, 28662-2, 28662-3, 792-4:2000
Product Name: DM5 Model : CHIPPING HAMMER Serial Number :
Signature of Certifier : ( E J Van Der Stighelen - Engineering Manager ) Date & Place of issue :/ / East Kilbride
The Macdonald DM5 Chipping Hammer is the
ideal tool for light duty demolition work in brick
or concrete. Due to the hammer only action
these tools will give reduced maintenance costs,
harder hitting power and less spares
requirements than hammer drill tools. They can
be used with a range of standard accessories.

20 19
10
5
4
6
7
8
2
3
24
1
22
23
21
11 12
14
17 18
13 16
15
GENUINE SPARE PARTS
DM5 Chipping Hammer
DM5 Chipping Hammer
Macdonald
SAFETY AND OPERATING
INSTRUCTIONS (General )
1. Never exceed the maximum air pressure recommended for the machine,
usually this is 7.5 bar (110 p.s.i.g.) for hand held machines.
2. Do not use damaged, frayed or deteriorated hoses and fittings. Always store
hoses properly after use away from heat sources or sunlight. A hose failure
can cause injury.
3. When blowing out a hose or air line, ensure the open end is held securely, a
free end will whip and can cause injury. Open the supply air cock carefully and
ensure that any particles are ejected safely. A blocked air hose can become a
compressed air gun.
4. Close the air cock at the compressor or the supply line and release the line
pressure before disconnecting the hose. The air cock should be within easy
reach of the work area.
5. Personal protection such as safety glasses, gloves and safety footwear should
be worn by the operator and other personnel where work operation or
regulations require their use. Ear defenders should be worn.
6. Depending on the material being worked on, precautions may be required
against the generated dust.
USE OF THE MACHINE
1. Use only approved inserted tools.
2. Worn Inserted Tools can promote breakage, reduce work rate and increase
vibration. An Inserted tool which breaks can cause injury.
3. Do not use frozen tools. In freezing conditions, store tools undercover,
preferably in a warm building, Freezing conditions can make hardened steels
brittle and cause breakage.
4. A proper working position should be adopted to ensure stability in the event
of a breakage of an Inserted tool.
5. Always turn off compressed air supply and release the air pressure in the hose
before changing the Inserted Tool or before disconnecting the hose.
6. Always present the tool as squarely as possible to the working surface to
minimise the effects of side loading on the Inserted tool.
7. Do not use in circumstances where the tool may strike a live but possibly
concealed electric cable.
8. If the compressed air supply stops during operation of the machine the
throttle lever should be released immediately.
9. Never hold onto the Inserted tool, use the bottom sleeve or silencer.
Warning
NEVER ATTEMPT TO CHANGE A CHISEL, MOIL, ASPHALT CUTTER OR
OTHER ACCESSORY ON A PNEUMATIC TOOL UNLESS THE TOOL HAS
BEEN COMPLETELY DISCONNECTED FROM THE AIR SUPPLY.
THE CYLINDER OF THIS TOOL IS HARDENED AND SHOULD NOT BE
WELDED UNDER ANY CIRCUMSTANCES. WELDING CAN CAUSE
LOCAL SOFTENING.
MAINTENANCE
AND REPAIR
Attention to a few fundamental points will prolong the life of the tool, keep it in service and
ensure maximum working efficiency.
Ensure that the operator reads and understands what he is required to do to comply with these
points prior to using the tool. Ensure also that he carries out his part of the instructions.
1. Ensure the machine is disconnected from air supply before doing any work on it.
2. Ensure the machine is held firmly in a vice or fixture for dismantling.
3. Correct tools for dismantling and assembling must be used.
4. When using a solvent or cleaner, follow the manufacturers instructions.
5. Before clearing the machine for use, ensure that all the connections and joints
are tight, looseness causes air losses, vibration and general inefficiency.
6. Always blow out the hose before connecting to the tool to prevent dirt or other
foreign matters being carried into the working parts of the tool.
Lubrication
All pneumatic tools require regular and adequate lubrication to prevent excessive wear and
ensure efficient operation. Particular attention should be paid to lubrication during the initial
running in period of a new tool.
The tool works at top speed and full power right from the start, so lack of lubrication during
this period, before the tool is loosened , can lead to excessive wear on all working parts.
Where an oil reservoir is incorporated in the tool it should be filled daily.
Before starting work each day, pour a small quantity of the correct grade of oil into the air inlet
and blow out the hose to ensure no dirt or moisture is lying in the hose. Couple the hose to the
tool and give the tool a short burst. Care must be taken not to over-oil the tool to avoid excess
oil blowing from the tool and damaging the working surface.
Only clean oil of the correct grade, as stated, should be used for lubrication. A heavy or dirty oil
is useless as it will only serve to gum up  the tool.
Recommended Oil :
The following oils are recommended for use with Macdonald Tools and these or their
equivalents should be used in normal conditions. For abnormal conditions e.g. extreme heat,
consult the oil company.
SHELL Clavus 25
BP Energol LPT 80
ESSO Zerice 46
MOBIL Almo 525
Air Supply
Always ensure that an adequate supply of compressed air at a pressure of 6 bar (90 p.s.i.g.)
minimum is available to the tool. Reduced air pressure will affect the performance of the tool
adversely.
Use the shortest length of hose possible between the compressor and the tool to avoid undue
pressure drop through the hose.
General
The tools require adequate flows of compressed air at around 6 bar pressure for efficient
operation. Always blow out the hose carefully before coupling to the tool in case dirt or foreign
matter is carried into the tool in the air stream.
If the tool sticks completely, the most likely cause is dirt or improper or insufficient lubrication.
If this happens the tool should be dismantled by a competent engineer, the parts should be
thoroughly cleaned in a suitable solvent, lightly oiled and re-assembled. Keep the tool tight, do
not allow any fasteners or connections to become loose because this can lead to air losses,
vibration, excessive wear and inefficiency.
Always use sharp moils and chisels or spades because dull cutting edges cause the tool to
absorb the blow instead of cutting through the workpiece. This results in operator fatigue,
chisel breakages and poor productivity.
ILL. Part Description of Part Per Tool
1 176269 CYLINDER 1
2 176162 CYLINDER O-RING 1
3 176273 PISTON 1
4 176274 VALVE DISC 1
5 176275 VALVE PLATE UPPER 1
6 176276 VALVE PLATE LOWER 1
7 176277 PLASTIC VALVE BUMPER 1
8 176278 DOWEL PIN 2
10 176280 PACKING 2
11 176281 HANDLE 1
12 176170 PUSH ROD BUSHING 1
13 176171 PUSH ROD 1
14 176172 THROTTLE VALVE BUSHING 1
15 176173 THROTTLE VALVE 1
16 176174 THROTTLE VALVE SPRING 1
17 176175 INLET BUSHING 1
18 176175B INLET BUSHING O-RING 1
19 176176 LEVER/TRIGGER PIN 1
20 176177 LEVER/TRIGGER 1
21 176290 SPRING RETAINER 1
22 176291 CHISEL BUSHING HEX 19 X50mm 1
23 176301 SILENCER 1
24 176302 SILENCER CAP 1