Manual type 314 - Carmix do Brasil

Pilebreaker TYPE 314

USERS MANUAL

MANUAL TAETS PILE BREAKER, TYPE 314

Taets Techniek B.V. 2

CONTENTS

Chapter Description Page

1 Introduction 3

2 Transport, handling and storage of the pilebreaker

4

3 Installing the pilebreaker 5

4 Pilebreaker description 7

5 Pilebreaker operation

11

6 Maintenance 12

6.1 General 12

6.2 Replacement and tightening the chisels

13

7 To render the pilebreaker inoperative

14

8 Safety 15



1 Introduction The Taets hydraulic pile breaker type 314 is a hydraulically driven machine for breaking down mainly round concrete pile caps. The pile breaker is capable of breaking down piles up to 1200 mm diameter with average reinforcement. The pile breaker consists of single links with a fixed pitch of 314 mm, and half-links with a pitch of 230 mm. The diameter of the pile determines how many links have to be used - the maximum is 13 links. Each link contains a hydraulic cylinder with a chisel. The half-link is without hydraulic cylinder. The hydraulic cylinders are connected to an excavator or power pack with the correct oil pressure and flow. The chisels are driven into the pile, leaving a horizontal crack at the cut-off level and removing the concrete above. The reinforcement of the pile remains intact. Technical information:

- Manufacturer:

Taets Techniek BV Marineweg 23 2241 TX Wassenaar The Netherlands

- Breaking force per link: 340 kN - Weight per link: 88 kgs - Stroke per cylinder: 135 mm - Maximum pressure: 300 bars - Pile range from 350 up to 1200 mm



2 Transport, handling and storage of the pile breaker The pile breaker should be moved on a pallet with the use of a forklift. If this is not possible, the pile breaker chains can be used. The weight of a complete link is 88kgs, and the weight of a half link is 25 kgs. The hydraulic connections must be capped during transportation to prevent leaking oil, and to ensure that no dirt enters the hydraulic cylinders. The chisels must be retracted. To maintain the pile breaker in good condition during storage please note the following: - Dry surroundings (long term storage); - Sealed connections; - Retracted chisels; - Removal of any concrete and dust (steam cleaner); - All parts should be well lubricated if left in damp conditions.



3 Installing the pile breaker Built up the unit on a flat surface, using as many links as necessary in agreement with the pile dimensions. (Ref. Table 3.1) Connect the links with the pins and secure the safety plate. Make sure the safety plate is positioned and tightened! This

is important - if the pin is not secured, it can work loose and cause irrevocable damage to the link. The pile breaker (suspended by lifting chains and a cruciform) must be connected to a hydraulic supply e.g. an excavator. The supply must be 2-9 litres/minute for each cylinder. To obtain optimal piston speed, 9 litres per minute for each link is required. The total required amount of oil equals the number of links multiplied by 9. The maximum working pressure is at 300 bars. If this pressure is exceeded, damage to the hydraulic seals - cylinder may occur!

After 15 minutes of crushing, check that the chisels and bolts are still secure. A loose chisel will cause damage to the pis-ton and a loose bolt will damage link parts!

Check all hydraulic fittings for any leaks. Leaking hydraulic oil is an unnecessary environmental risk.

CHECK THIS TWICE DAILY! (ref: paragraph 6.2)



Number of links + number of half-links = pile diameter

Number of Links Number of 1/2 Links Pile diameter (mm)

6 0 344

6 1 423

6 2 501

7 0 452

7 1 530

7 2 606

8 0 558

8 1 635

8 2 711

9 0 663

9 1 738

9 2 814

10 0 766

10 1 842

10 2 917

11 0 869

11 1 944

11 2 1019

12 0 972

12 1 1046

12 2 1121

13 0 1074

13 1 1148

13 2 1222

Table 3.1: Pile diameters



4 Pile breaker descriptions The pile breaker consists of link sections with a fixed pitch of 314 mm, and of half-links with a fixed pitch of 230 mm. Each link contains a hydraulic cylinder. The hydraulic supply flows through separate hoses to each link. Each cylinder contains a chisel, secured by a guide bush. The chisels penetrate the pile. The unit must be connected to a hy-draulic supply, which provides the pile breaker with sufficient oil-flow. The pile breaker is designed for breaking round piles up to 1200 mm diameter, with average reinforcement. The pile breaker has no specific safety measures, however, the noise-level is below 70 dB (A). The parts of a total link are shown in Figure 4.1. Figure 4.2 shows the dimensions of the pilebreaker Figure 4.3 shows the parts of a cilinder.



Fig. 4.1



Fig 4.2



Fig. 4.3



5 Pile breaker operations Prior to using the pile breaker, you must ensure that the lifting equipment is properly secured to the lifting device (excavator or crane).

For the best results the distance between each break must be approximately 250 mm. To achieve a clean horizontal fracture at cut-off level, ensure that approximately 250 mm of uncrushed concrete remains for the last 'bite'. After crushing, the loose concrete can then be pulled of the pile by keeping the chisels extended and lifting the entire unit off the pile. For the best results and durability, all chisels should pene-trate the concrete in between the reinforcement bars.

When crushing oversized piles, a half-link (pitch 230) can be used. Ensure the safety plate is positioned and tightened! When breaking down piles, please follow these safety measures: - Safety shoes, for falling concrete; - Safety glasses, for concrete fling about; - No parts of the body in or under the circle of the pile breaker.



6 Maintenance 6.1 General To maintain the pile breaker in good condition: - Always check for loose chisels, minimum twice daily (ref.

paragraph 6.2); - Never let the pressure exceed 300 bars Damage to the cylinder may occur!

- The area around the piston must be cleaned each week; - Check if safety plates are in position and tight before

breaking; - The pile breaker must be stored with the chisels retracted,

and the hydraulic fittings capped; - The distance between the chisels and guide bushes should

not exceed 3 mm (1/8 inch); Damage to the piston may occur!

- During operation, check for any oil leaks and repair immediately;

- Leakage causes unnecessary environmental pollution!



6.2 Replacement and tightening the chisels 1. Connect the breaker to a hydraulic supply; 2. Remove the guide bushes (4 bolts M16 x 30); 3. Extend the piston and apply pressure (maximum 300 bars,

4250 psi). 4. Use a heavy-duty hammer and a spanner (83 mm) to

tighten the chisels or to remove the old chisels. New chisels

must be heated up to a minimum temperature of 80 degrees Celsius before assembling. Ensure the temperature does not exceed 140 degrees Celsius! The

material will weaken! To heat the chisel you can use a hot

plate and a temperature gauge. 5. Use a heavy-duty hammer and a spanner (83 mm) to

tighten the heated chisels. 6. Take the pressure off and replace the guide bush. The

torque wrench setting for these bolts is 200 Nm (1740 lb.in.) Use a torque wrench!



7 To render the pile breaker inoperative When dismantling pile breaker inoperative, collect all the oil in a tray. Spilt oil is an unnecessary environmental risk!



8 Safety Risk: High-pressure hydraulic equipment, burst hose causing

injury. Action

1. Check correct specification of hose is used. 2. Machines must be serviced and checked for wear and

visible damage by procedures, prior to use. 3. Goggles are recommended for use. Risk: Failure of Lifting Equipment

Action

1. All chains and miscellaneous lifting gear are regularly

checked (and tested if necessary) as per Construction (Lif-ting Operation) Regulations 1961.

2. Ensure that you adhere to safe lifting practices regarding overhead lifting and manoeuvres.

Risk: Hydraulic oil - risk of injury from continuous exposure,

risk of fire. Action

1. Be aware of current COSHH recommendations regarding

the handling and storing of hydraulic oil. 2. Suitable protective clothing is recommended.

Documents

Manual type 314 - Carmix do Brasil