Maintenance Guide for Pneumatic
Tools or Air Tool
AIR
SUPPLY
Tools in the range generally operate at a maximum pressure of 90 psi you
should consult manufacture specifications for correct working pressures
also it would be advisable to controlled air consumption with combined
regulator/oil/water separator unit which with proper maintenance will ensure
a constant supply of dry air and lubricating oil at all times. Always check
machine operating pressure before use. Water in the compressor tank will
cause serious corrosion to your air tools and should be drained daily to
avoid excessive water in your air supply. Dirty wet air rapidly shortens
the life of your air tool. If you are using an air tool on a hose over
25ft. long it is advisable to increase the bore of the hose to the next
larger size available ie. 1/4" increases 3/8". This will ensure adequate
pressure and volume of air to power the machine.
RECOMMENDED AIR SUPPLY OPERATION:
Some air tools have inbuilt regulators which can be used to control
speed/torque performance, on machines without inbuilt regulators this
can be done by varying the pressure on your air supply regulator.
MAINTENANCE:
Every day, before use, remove the tool from the air line, use an oil
can and pour the equivalent of a tablespoon of suitable oil into the
machine (through the air intake). Operate at low speed to ensure lubrication
of all moving parts. If machine is in constant use or is to be used for
long periods of time a combination filter/lubricator must be fitted in
the system. At all times the system must be fitted with an air filter.
Recommended Air Tool oils
- Tellus 22
- Duckhams
- Zircon 32
- Castrol AWS32
Do not use normal engine oil or similar.
Please note:
Failure to care for your 'air Tools' and not caring out general Maintenance
will not only lower the life of your air tool but also will invalidate
any manufacture Guarantee.
TROUBLE SHOOTING SAFETY RULES FOR AIR TOOL PRODUCTS
1. Always wear safety goggles or glasses.
2. Always ensure machine is switched off before connecting to air supply.
3. Disconnect any machine from the air supply before changing blades
or discs, and before servicing any type of machine.
4. Always keep your air tool clean and lubricated. Daily lubrication
is essential to avoid internal corrosion and possible failure.
5. Do not wear watches, rings bracelets or loose clothing when using
air tools.
6. Using only light weight coil hoses from a tool to the wall or compressor
coupling. Do not fit quick change couplings onto the machine as vibration
can cause the coupling to fail.
7. Do not overload the machine. Allow the tool to operate at its optimum
speed for maximum efficiency. 8. Do not increase the air pressure above
the manufacturers recommended level, as excessive overload can cause
the machine casing to split. Also this creates excessive wear on moving
parts and possible failure.
9. In the interests of safety and possible damage to the machine/operator,
always ensure that the machine has stopped before putting it down after
use.
10. Always ensure that the work piece is firmly secured leaving both
hands free to control the machine. 11. Always ensure that the accessories
such as blades, discs, sockets, etc. are rated/designed for use with
the machine. Also correctly and securely fastened before connecting the
machine to the air supply.
PROBLEMS POSSIBLE CAUSES REMEDIES
Symptom: Tool runs at normal speed but loses under load - Motor parts
worn.
Possible Cause: Cam clutch worn or sticking due to lack of lubricant.
Solution: Lubricate clutch housing. Check for excess clutch oil. Clutch
cases need only be half full. Overfilling can cause drag on high speed
clutch parts, ie. a typical oiled/lubricated wrench requires 1/2 ounce
of oil.
GREASE LUBRICATED:
NOTE: Heat usually indicates insufficient grease
in chamber. Severe operating conditions may require more frequent lubrication.
TOOL RUNS SLOWLY
Air flows slightly from exhaust Motor parts jammed with dirt particles
Power regulator in closed position Air flow blocked by dirt.
Check air inlet filter for blockage
.Pour air tool lubricating oil into air inlet as per instructions. Operate
tool in short bursts quickly reversing rotation back and forth where
applicable. Repeat above as needed. If this fails return to manufacture
service centre.
Tools will not run - Air flows freely from exhaust
One or more motor vanes stuck due to material build up.
Pour air tool lubricating oil into air inlet.
Operate tool in short bursts of forward and/or reverse rotation where
applicable. Tap motor housing gently with plastic mallet. Disconnect
supply. Free motor by rotating drive shank manually where applicable
If tool remains jammed return to service centre.
Tool will not shut off
‘O’ rings throttle valve dislodged from seat inlet valve.
Replace ‘O’ ring or return to service centre.
Note: Repairs should be carried out by a qualified person.
By: Air Power Tools
Disclaimer:
Contents of this articles and all articles by Air Power Tools are for
reference purposes only.
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