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Figure 2.0: Amphibious Undercarriage Structure  

 

2.1 PARKING BRAKE 

The machine normally comes with a closed-type brake, which is an automatic brake device 

using spring force when the excavator is parked on a slope.  

When  the  machine  is  working,  the  brake  valve  on  the  travel  motor  will  automatically  be 

released each time the travel foot pedal is activated to move forward or backward.  

 

3.0

 

 OPERATION  

The operator must read the machine 

manufacturer’s operation manual, and all warning and 

control labels before attempting to operate the machine.  

3.1 PRECAUTIONS BEFORE USING A NEW MACHINE  

The service life of an excavator is largely dependent on the load condition of its initial use.  
The operator should increase the load according to the following instructions before using a 

new machine. The operator can set the load time by working hours on display, according to 
the lubrication chart and maintenance instructions.  

Overloading will cause scratches on the hydraulic motors, and during test runs it will affect the 

service life of the machine.  

During the Test: 

 

WORKING TIME 

 

LOAD 

 

First 50 hours  

80% of the load (74% of the diesel engine rated rpm)  

After 50 hours  

Full Load  

 

3.1.1 INSPECT THE FOLLOWING ITEMS BEFORE OPERATING  

1. 

Check for any parts that were broken, missing, or loosened during transportation.  

2. 

Check the track chain tension.  

3. 

Make sure that there are no oil or hydraulic oil leaks in any part of the machine.  

4. 

Use the recommended oil and grease.  

5. 

Make sure there are no defects in the hydraulic hoses and hydraulic lines.  

6. 

Close the manual valve when performing maintenance procedures. Special attention 
should be paid during the opening of the manual valve before starting the engine after 
maintenance.  

7. 

Make sure that the spud poles are in their original position when traveling.  

Summary of Contents for AT300-V2

Page 1: ...1 HawkExcavator com AT300 V2 AT300PS V2 AMPHIBIOUS EXCAVATOR OPERATION INSTALLATION AND MAINTENANCE MANUAL CERT NO TUV100 01 2043 ISO 9001 2015...

Page 2: ...a thorough and systematic way to facilitate operation and maintenance The correct way of operation as well as proper and timely maintenance can fully develop the best performance of this machine impr...

Page 3: ...EFORE USING A NEW MACHINE 7 3 1 1 INSPECT THE FOLLOWING ITEMS BEFORE OPERATING 7 3 2 OPERATING THE MACHINE 8 3 2 1 PRECAUTIONS 8 3 2 2 TRAVELING ON LAND 8 3 2 3 TRAVELING ON MARSHLAND 8 3 2 4 TRAVELIN...

Page 4: ...CE 15 5 3 INSPECTION AND MAINTENANCE BEFORE OPERATING MACHINE 16 5 4 OTHER MAINTENANCE 17 5 4 1 TRAVEL DEVICE 17 5 4 2 TIGHTENING OF THE SLEWING FRAME MOUNTING BOLT 18 5 4 3 ADJUSTING TRACK TENSION AN...

Page 5: ...A 2 SPUD POLE MOTOR QUANTITY 2 MOTOR SET HIGH QUALITY HYDRAULIC MOTOR ORIGIN KOREA 3 TRAVEL SPEED GROUND km h mph 0 3 2 0 1 9 MARSHLAND km h mph 0 2 0 1 2 IN STILL WATER km h mph 0 1 75 0 1 08 4 GRADE...

Page 6: ...he wind speed is 240 m min 8 94 mph or less 1 2 2 NON ALLOWED CONDITIONS 1 Do not operate the machine on stumps hard stones or uneven ground that is frozen and solid when mounted with additional ponto...

Page 7: ...e The operator can set the load time by working hours on display according to the lubrication chart and maintenance instructions Overloading will cause scratches on the hydraulic motors and during tes...

Page 8: ...ially after long distance travel on water or land This can help to extend the life of the track chain and promote better travel performance 3 2 2 TRAVELING ON LAND 1 Clear the road using the bucket Th...

Page 9: ...ther 3 2 5 ENTERING THE WATER 1 Check the water depth before launching the machine Do not directly launch the machine into the water as it may overturn 2 When entering the water the recommended launch...

Page 10: ...AVOID EXCAVATION WORK WHILE FLOATING The amphibious excavator is designed to work on soft ground Therefore avoid letting it float in water while working Performing the digging operation while floatin...

Page 11: ...forward position as shown in Figure 3 5 Figure 3 5 Landing the amphibious excavator 3 2 8 TRAVELING ON WATER AND UNDER A BRIDGE The machine can travel under a bridge A proper setting should be applie...

Page 12: ...three way ball valves at the top been placed on the top of the side pontoons to activate the spud hydraulic cylinder or spud drive motor Extend the spud cylinder by switching the ball valves By using...

Page 13: ...e motor to raise the spud up and down 4 These valves must be manually adjusted by the amphibious excavator operator 5 Once the spuds have been moved from the horizontal to the vertical position for op...

Page 14: ...ontrol the travel lever to raise the spud until it reaches the limit plate Refer to Figure 3 10 3 Start traveling 4 0 MAINTENANCE Proper and timely scheduled inspections and maintenance are important...

Page 15: ...e force and require frequent inspection and tightening 9 Avoid any scratches on the mating face of hydraulic components 10 Pipes hoses oil tanks and others must be cleaned before installation 11 Never...

Page 16: ...IN PROGRESS sign in a place visible to others to avoid unwanted incidents Refer to Figure 5 1 Figure 5 1 Sign during inspection and maintenance 5 3 INSPECTION AND MAINTENANCE BEFORE OPERATING MACHINE...

Page 17: ...rcarriage body and its parts a b Daily Do if necessary Oil change of the drive shaft gearbox a 3 months 1000 hours 5 4 OTHER MAINTENANCE 5 4 1 TRAVEL DEVICE Figure 5 2 shows the oil inlet and outlet o...

Page 18: ...l until it reaches the horizontal oil level and a little comes out of the outlet plug Then close the plugs again and tighten them properly 5 4 2 TIGHTENING OF THE SLEWING FRAME MOUNTING BOLT Perform a...

Page 19: ...ck chain Figure 5 5 Position of chain bolts and nuts Figure 5 6 Track chain tensioning After the tensioning process is completed it is necessary to grease the track chains so that the amphibious excav...

Page 20: ...oad the amphibious parts carefully and make sure they are well placed and secure 6 2 ASSEMBLING THE MACHINE After unloading the transport the reassembly sequences are as follows 1 Get a crane of the r...

Page 21: ...arriage bodies according to the correct position Use the locking pin to lock the crossbeams Refer to Figure 6 3 Figure 6 3 3 Move the second undercarriage unit to the preassembled unit Insert the unde...

Page 22: ...the slewing frame mounting flange with the crossbeam mounting flange Refer to Figure 6 5 Figure 6 5 5 Tighten the slewing frame upper mounting flange onto the bottom mounting flange as shown in Figur...

Page 23: ...body manufacturer Check the alignment of both the upper body swivel flange and the slewing frame flange and tighten all the bolts thereafter Refer to Figure 6 7 8NOS M30 x 60L hex bolt c w spring was...

Page 24: ...lic hose connection from the slewing frame to the center joint 8 Follow the start up instructions provided with the operation manual for the upper body and start the machine Operate the hydraulic syst...

Page 25: ...toon box beam into the S chamber of the pontoon 3 Lock the side pontoon by inserting the locking pin as shown in Figure 6 10 4 Connect the hydraulic system from the slewing frame two way ball valves t...

Page 26: ...s from the undercarriage hydraulic cylinder brackets it is not necessary to remove the hydraulic cylinder from the slewing frame Use a rope to tie or hang the hydraulic cylinder to the slewing frame 3...

Page 27: ...r taking the time to read this manual We hope you have a pleasant experience using our Amphibious Excavator AT300 V2 AT300PS V2 For any further information do not hesitate to contact us HawkExcavator...

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