AT350C, AT3100C 3HPAir Compressor

Code 106376Code 106377

Original Instructions

AT&M: 06/02/2020BOOK REF: APT008104

BOOK VERSION: 1

Code: 106376Model: AT350C

Code: 106377Model: AT3100C

Index of Contents

2

The symbols below advise that you follow the correct safety procedures when using this machine.

Fully read manualand safety instructions

before use

Eye protectionshould be worn

Ear protectionshould be worn

HAZARDMotor gets hot

Dust maskshould be worn

EU Declaration of Conformity

Cert No: AH-350, AH30-100

Axminster Tools & Machinery LtdAxminster Devon EX13 5PH UKaxminster.co.uk

Type Air Compressor

Model AT350C, AT3100C and conforms to the machinery example for which the EC Type-Examination Certificate No SH10010317-V1has been issued by Intertek Testing Services Shanghai at: Uno Resourcing Inc. No.27, North Huan Road, C.E.P.Z Wuchi, Taichung 435,Taiwan. P.O Box. 65-855. Taichung. Taiwan Kunshan Puma Industrial Inc. 136 Pengqing Road,Huaqiao Kunshan, 215332, P.R. CHINA

and complies with the relevant essential health and safety requirements.

2006/42/ECEN 1012-1: 2010EN 60204-1: June 2006+ A1: 2009EN 62233: 2008

declares that the machinery described:-

This machine complies with the following directives:

EU Declaration of Conformity

Signed

Andrew ParkhouseOperations Director Date: 10/01/2012

EU Declaration of Conformity 02

What’s Included 03

General Instructions for 230V Machines 04

Safety Precautions 04

Specification 05

Assembly 06-07

Illustration & Parts Description 08-09

Operating Instructions 10-11

Maintenance 12-13

Troubleshooting 13

Exploded Diagrams/Lists 14-15

What’s Included

3

Quantity Item Part

1 Trade Air Compressor A 2 Wheels B 1 Handle C 2 Large Stepped Bolts & Flange Nuts D 1 Manual

Model Number AT350C (AH-350) Model Number AT3100C (AH30-100)

B

C D

A

General Instructions for 230V Machines

4

Good Working Practices/Safety

Air Powered Tools

The following suggestions will enable you to observe good working practices, keep yourself and fellow workers safe and maintain your tools and equipment in good working order.

WARNING!! KEEP TOOLS AND EQUIPMENT OUT OF THE REACH OF YOUNG CHILDREN

01. Always perform pre-operation checks before starting up

the compressor.

02. Never leave inflammable objects or materials near to the

compressor.

03. Always check oil level before using the compressor.

04. The cylinder head and delivery pipe become hot during use.

05. Do not touch these items while the compressor is running.

06. Allow to cool thoroughly after shut-down before handling.

07. Do not operate above the maximum working pressure of

115 psi (7.8 bar).

08. Avoid using the compressor with an extension cable; this

may reduce the supply voltage and make the motor

overheat.

The following will enable you to observe good working practices, keep yourself and fellow workers safe and maintain your tools and equipment in good working order.

WARNING!! KEEP TOOLS AND EQUIPMENTOUT OF REACH OF YOUNG CHILDREN

Mains Powered Tools

• Tools are supplied with an attached 13 Amp plug.• Inspect the cable and plug to ensure that neither are

damaged. Repair if necessary by a suitably qualified person.• Do not use when or where it is liable to get wet.

Workplace

• Do not use 230V a.c. powered tools anywhere within a site area that is flooded.

• Keep machine clean.• Leave machine unplugged until work is about to commence.• Always disconnect by pulling on the plug body and not the

cable.

• Carry out a final check e.g. check the cutting tool is securely tightened in the machine and the correct speed and function set.

• Ensure you are comfortable before you start work, balanced, not reaching etc.

• Wear appropriate safety clothing, goggles, gloves, masks etc. Wear ear defenders at all times.

• If you have long hair wear a hair net or helmet to prevent it being caught up in the rotating parts of the machine.

• Consideration should be given to the removal of rings and wristwatches.

• Consideration should also be given to non-slip footwear etc.• If another person is to use the machine, ensure they are

suitably qualified to use it.• Do not use the machine if you are tired or distracted • Do not use this machine within the designated safety areas

of flammable liquid stores or in areas where there may be volatile gases.

• Check cutters are correct type and size, are undamaged and are kept clean and sharp, this will maintain their operating performance and lessen the loading on the machine.

• OBSERVE…. make sure you know what is happening around you and USE YOUR COMMON SENSE.

KEEP WORK AREA AS UNCLUTTERED AS IS PRACTICAL. UNDER NO CIRCUMSTANCES SHOULD CHILDREN BE ALLOWED IN WORK AREAS.

Safety Precautions

09. Switch the compressor on and off by using the pressure

switch knob (see page 12); only switch off at the mains in

case of emergency.10. Drain water from tank every day. 11. If the compressor shuts down through overload or

overheating check the reason for the shut-down before re-starting.

12. Do not adjust the tank pressure relief valve without

reference to Axminster Tools & Machinery Service

Department.

13. Do not remove parts from the compressor whilst it is

running.

14. Do not operate the compressor with protective covers

removed or damaged.

15. When spray painting always work in a well ventilated area

and never close to open flames.

16. Never direct a jet of compressed air towards

people or animals. Keep children and animals away

from the compressor.

17. Do not use on an inclined surface.

18. Only use in ambient temperatures between

–10˚C and +40˚C.

19. Only operate on 230 volt supply and with maximum

fuse rating of 13 amps.

Specification

5

Code 106376Model AT3050CRating TradePower 2.2 kWFree Air Delivered @1 bar - 280 l/m (9.88CFM), @3 bar - 210 l/m (7.41 cfm), @6 bar - 175 l/m (6.18 cfm)Max Pressure 115 psiReceiver Volume 50 litreOil Capacity 900 mlSupply Requirements 230 V 1ph 13 AOverall L x W x H 880 mm x 415 mm x 810 mmWeight 60 kg

Code 106377Model AT30100CRating TradePower 2.2 kWFree Air Delivered @1 bar - 280 l/m (9.88CFM), @3 bar - 210 l/m (7.41 cfm), @6 bar - 175 l/m (6.18 cfm)Max Pressure 115 psiReceiver Volume 100 litreOil Capacity 900 mlSupply Requirements 230 V 1ph 13 AOverall L x W x H 1,010 mm x 415 mm x 810 mmWeight 80 kg

AT350C Trade Air compressor AT3100C Trade Air compressor

Assembly

6

Fitting the Rear Wheels

1

2

3

12

4

Fitting Handle

B

C

D

Assembly

7

Fitting the Quick Release Coupling Filling the Crankcase with Oil

Remove the 1/4" BSP Male airline fitting, see fig 01. Wrapsome PTFE tape (A) around the thread on the 1/4” BSP male coupling (B) and screw it into the pressure regulator outlet, lightly tighten using a spanner. (DO NOT OVERTIGHTEN) The compressor is now ready for use, see fig 02-03.

01

02

0306

05

04

A

B

ALWAYS USE COMPRESSOR OIL!

Oil level

Illustration & Parts Description

8

Regulator preset lock (G)

ON/OFF control switch (A), Regulator control knob (B), 1/4” BSP male coupling (C), Outlet Valve Tap (D),

Tank pressure gauge (E), and Outlet pressure gauge (F)

Pressure relief valve

‘REST’ button, press this button if compressor is not functioning properlyCrankcase oil filler plug (H)

Oil Level indicator (I)Oil drain plug (J)

A

B

CD

E F

H

G

RESTI

J

Illustration & Parts Description

9

Water drain valve

Outlet valve tap

Oil filler plug

Handle

Air inlet filter

Motor REST control

ON/OFF Switch

Motor

Closed

Open

CrankcaseHandle

Wheel

Pressure relief valve

Pressure switch unit

Pressure gauges

Drive belt guard

Pressure regulator

Rubber foot

Tank

Operating Instructions

10

Turning on the Compressor

Pressure Relief Valve

Connect the compressor to the mains supply and switch on by pulling the on/off knob upwards. (see figs A-B). Check that the compressor pressurises the tank and shuts off when the maximum tank pressure is reached. The compressor is automatic in operation; the pressure switch shuts the motor off when the maximum tank pressure is reached and re-starts it when the pressure drops below a pre-set level. The cut-in and cut-out pressures are factory set and should not need to be altered.

CONNECT THE COMPRESSOR TO THE MAINS SUPPLY!

NOTE: It is advisable to fully drain the air from the tank if the compressor is left unused for a period, this will prevent the build-up of water in the tank.

DO NOT use dirty or non detergent oil.

DO NOT operate compressor in an ambienttemperature above 40˚C.

DO NOT operate in a badly ventilated area.

KEEP the air filter clean.

C

A

D

B

Pull up for ON (I) Push down for OFF (O)

There are two safety systems on the air compressor, the first is the pressure switch to turn the compressor on when the tank pressure is low and switches off automatically when the correct pressure is reached. If the switch fails to switch off, the secondis the PRV which should blow open to vent the air from the

tank. This prevents the pressure in the tank from reaching dangerous levels. A PRV that has let go is a signal that you need to shut down the air compressor immediately and contact our technical team to resolve the issue.

Pressure relief valve

Ring TEST the Valve

To test the PRV is working correctly pull the ring towards you, (see fig C-D) this forces the valve to open, venting compressed air from the tank into the atmosphere. If there is no air in the tank, pulling the PRV ring will not vent air, but it will move the internal components which is a good thing.

Operating Instructions

11

Output Air Pressure Regulator

The outlet air pressure can be regulated by rotating the regulator knob clockwise to increase the pressure and anti-clockwise to reduce it. DO NOT leave the regulator set at maximum setting unnecessarily; reduce the setting by about two turns after finishing and then re-set to the required pressure when starting work again.

0

0

2

4

68

10

12kg/cm2

kPa

(1) 00•

• (3) 00

•(9) 00

• (5) 00

• (7) 00

(11)00 •

(BAR)

Lb/in2

(PSI)

180

15030

120

90

60

0

0

2

4

68

10

12kg/cm2

kPa

(1) 00•

• (3) 00

•(9) 00

• (5) 00

• (7) 00

(11)00 •

(BAR)

Lb/in2

(PSI)

180

15030

120

90

60

Regulator preset lock

Increase pressure

Decrease pressure

Maintenance

12

Daily:

Weekly:

Drain water from tank, see fig 01.

02

03

04

01

07

08

05

06

DISCONNECT THE COMPRESSOR FROM THE MAINS SUPPLY!

Check oil level and top-up if necessary, see fig 02-03-04.

Oil level

Monthly:

Remove the air inlet filter outer casing and clean the filter element, see fig 05-06-07-08.

• Wash in soapy water and leave to dry.

• Do not use the compressor without the air filter fitted.

Maintenance

13

09

Six Monthly: Yearly:

Check the condition of the oil for the following. If you notice the oil is black insead of a golden colour, a build up of foam inside the crankcase or water bubbles showing inside the sight glass level indicator, it’s time to change the oil.

With the oil still warm, place a suitable container under the drain plug bolt below the sight glass, remove the drain plug and drain the oil right out, see fig 09. Replace the drain plug bolt, remove the oil filler plug and refill to the level mark on the sight glass level indicator, see fig 02.

(1) Replace the air filter element.

(2) Check and clean the air intake and delivery valves.

(3) Check the non-return valve and replace the sealbetween the crankcase and cover if necessary.

When components are removed for servicing, take theopportunity to fit new seals.

Note: (2) and (3) should be undertaken by a competentservice engineer.

Contact our Servicing, parts and technical support team on 0800 371822 or Email: technicalsupport@axminster.co.uk

Hex bolt

Troubleshooting

PROBLEM CAUSE REMEDIAL ACTION

Tank pressure drops Leakage at connections or joints.

Set the compressor to maximum pressure. Switch off and brush a soapy water solution onto all connections and joints. Look for bubbles. Tighten connections or joints where leakage is visible.

The pressure switch valve leaks when the compressor is stopped

Non-return valve seal dirty or defective.

Release any air in tank by pulling the ‘PRV’ valve and contact our technical team on 0800 371822.

The compressor stopsand will not start again

Bad electrical connections. Check the connections. Clean and tighten as necessary.

Current over-load protector or over-heat protector has activated.

Press the reset button on the current over-load and wait for a minute. The motor will run when it has cooled.

Motor winding burnt out. Contact our techical team at Axminster Tools for assistance.

Compressor head gasket blown or valve broken.

Contact our technical team at Axminster Tools for assistance. 0800 371822

The compressor does not reachthe set pressure and overheats

Crank bearing failure. Stop the compressor and contact our technical team at Axminster Tools for assistance.

The compressor is noisy Repetitive metallic clanking

Pressure switch failure. Stop the compressor quickly. Release any air in tank by pulling the ‘PRV’ valve and contact our technical team at Axminster Tools.

Exploded Diagrams/Lists

14

Models: AH-3050, AH30100 Air Compressors

Exploded Diagrams/Lists

15

Models: AH-3050, AH30100 Air Compressors

NO DESCRIPTION QTY

1 Bolt 6

2 Spring Washer 6

3 Cylinder Head 1

4 Air Filter Assy 1

5 Copper Washer 2

6 In-Six Angle Bolt 2

7 Exht. Elbow Gasket 1

8 Spring Washer 2

9 In-Six Angle Bolt 2

10 Exht. Cooler 1

11 Nipple 1

12 Nut,Exhaust 1

13 Gasket, Cylinder Head 1

14 Valve Seat 2

15 Valve Plate 4

16 Gasket, Cylinder 1

17 Piston Ring Set 2

17a Compression Ring 4

17b Oil Ring 2

18 Piston 2

19 Piston Pin 2

20 Piston Pin Clip 4

21 In-Six Angle Bolt 4

22 Spring Washer 4

23 Connecting Rod 2

24 Splasher 2

25 Spring Washer 2

26 Screw,Cross Recess Head 2

27 In-six Angle Bolt 6

28 Spring Washer 6

29 Cylinder 1

30 Gasket, Cylinder 1

31 Breather Assembly 1

32 Washer,Breather 1

33 Gasket, Bearing Cover 1

34 Bearing Cover 1

35 Spring Washer 4

36 In-six Angle Bolt 4

37 Oil Leveler 1

38 Washer, Oil Leveler 1

39 Washer 1

40 Baseplate 1

41 Oil Drain Plug 1

42 In-six Angle Bolt 6

43 Spring Washer 6

44 Crankcase 1

45 Bearing 1

46 Shaft with Elastic Gasket 2

47 Crankshaft 1

48 Woodruff Key 1

49 Bearing 1

50 Gasket, Bearing Seat 1

51 Oil Seal 1

52 Bearing Seat 1

53 Spring Washer 4

54 In-six Angle Bolt 4

55 Pulley 1

56 Pulley Washer 1

57 Spring Washer 1

57a Bolt 1

58 Air Tank 1

59 Pressure Gauge 1

60 Pressure Switch 1

61 Nipple 1

62 Pressure Gauge 1

63 Regulator 1

64 quick coupling 1

65 Safety Valve 1

66 Six Angle Nut 4

67 Washer 4

68 Bolt 4

69 Motor Bolt 4

70 Washer 4

71 Six Angle Nut 4

72 Motor 1

73 Motor Pulley 1

74 In-six Angle Bolt 1

75 Unload Copper Pipe 1

76 Check Vavle 1

77 Unload Elbow 1

78 1

79 Exhaust Pipe 1

80 Protective Fin 1

81 In-six Angle Bolt 4

82 Screw 2

83 Foot Rubber Pad 2

84 Drain Cock 1

85 wheel axle 2

86 wheel 2

87 Six Angle Nut 2

88 Power Cord 1

89 Pres. Adjt Connecter 6

90 Ele.Cable 1

91 V-Belt 1

92 Safety Guard plate 1

93 Washer 1

94 Spring Washer 1

95 Bolt 1

96 Safety Guard 1

Axminster Tools & Machinery

Axminster Devon EX13 5PH

axminster.co.uk

The packaging is suitable for recycling. Please dispose of it in a responsible manner.

Do not dispose of electric tools together with household waste material. By law they must be collected and recycled separately.

EU Countries Only

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