4.1 fundamental circuit

When piping the hydraulic lines on base on machine, it is important to know the fundamental circuit to which the piping belongs. Then the piping can be connected correctly, properly and quickly.

PUT PHOTO

Fig.4.1 is shown the one of simplest hydraulic circuit in case of installation a service port into the main control valve of base machine.

NOTE

  • If the piping method is different with fig.4-1, consult us or attachment manufacture.

4.2 general view

NOTICE

  • Check the piping lines for correction of such as a pressure, flows or pressure loss, if the hydraulic pipe once are installed in the machine.
  • A pressure control valve has to be installed. If there is no pressure control valve on the main control valve of base machine.

PUT PHOTO

Figure 4-2 standard view of installation

4.3 installation

CAUTION

  • Never Insert our hand or fingers into the pin hole.

WARNING

  • While aligning the arm hole, or moving the bucket, make sure that there is no person in the vicinity of arm or bucket of base machine.
  • It is dangerous to move the base machine suddenly during installation.
  • Wear the safety shoes to protect feet.

NOTICE

  • Be careful so that dust may not enter the hydraulic breaker and base machine.
  • Install or remove the hydraulic breaker on horizontal ground without mud or dust.

4.3.1 Set the hydraulic breaker on horizontal ground.

4.3.2 Remove the bucket from the base machine after disassembling the two pins.

NOTICE  

_ If the bucket cylinder is retracted, the installation will be easier. 

4.3.3 Move the base machine in the vicinity of hydraulic breaker and align the pin hole of arm with the pin hole of hydraulic breaker, and then, insert the pins.

4.3.4 After the arm pin is inserted, lift the boom, insert the hydraulic breaker on the wood blocks like 4-3-3. Extend the bucket cylinder, fit it to the bucket link’s hole and insert the pins.

4.3.5 Install the stop rings, align the bolt holes and insert the bolts, mutually lock double nut.

NOTICE

  • If the stop rings are secured with one nut only, the service life of the bolt may be shortened, or the bolt may be loosened out very quickly.

4.3.6 Stop the engine of the base machine, turn off the main switch and discharge the air pressure in the hydraulic oil tank.

4.3.7 Remove the union caps from the hydraulic breaker pipe of the arm end and connect the hoses after disassembling the hose plug.

NOTICE

  • Do not allow the oil to drop onto the ground.
  • Store the removed union cap and hose plug in the toolbox.
  • When installing or removing the oil hose and union cap, clean them fully to prevent the dust and mud from entering the hydraulic breaker of the base machine.

4.3.8 Connect the hoses to stop valve at both sides of arm.

4.3.9 Turn on the engine of the base machine, left the boom, operate the bucket cylinder and check the hose of hydraulic breaker is connected correctly.

4.3.10 Starts warm up the base machine.

HYDE’ Hose SPEC

Model

Hose diameter (inch)

Length

Working pressure (bar)

45/53/68/75

½

1450

140

85/100

¾

1850

170

135/140(A)

1

2300

180

150/155

1

2500

180

165(F)

1-1/4

2800

190

175

1-1/4

3000

200

NOTICE

  • Warm up the base machine by idling for 5 minutes after starting the engine.
  • Move the boom and arm for approx. 5 minutes after warming up operation to raise the hydraulic oil temperature of base machine.

4.3.11 Turn the stop valves to “ON” position

CAUTION

  • The tool may come out under oil pressure in the pipeline. Do not stand near of hydraulic breaker.

4.4 Removal

CAUTION

Personal injury can result from dropping pins during removal.

WARNING

Wear safety shoes to protect feet

NOTICE

Cover the hydraulic already removed with sheet, and then store it in doors.

4.4.1 Set the hydraulic breaker on clean and horizontal ground.

4.4.2 Stop the engine.

4.4.3 Turn stop valve to “OFF” position.

4.4.4 Disconnect hoses from stop valves. Ensure no leakage occurs from hoses and stop valves.

4.4.5 Apply union cap and plug to hose ends fittings to prevent contamination.

4.4.6 Remove pins fixing fasteners.

4.4.7 Remove pins.

4.4.8 When pins have been withdrawn, move operating joystick slightly, to take weight off remaining link pin.

4.4.9 Lift arm away from hydraulic breaker so that hydraulic breaker can be carried away, or another attachment mounted on base machine.