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WITH THE TOOL PERFECTLY DRY, SPRAY A PROTECTIVE-DEWATERING PRODUCT (CRC-or  WD40
ON THE TOOL AND ON THE QUICK COUPLERS. 
DRY UP COMPLETELY THE TOOL HANDLE TO GUARANTEE A FIRM GRIP 

 
 
 

PERIODICAL CONTROLS 

 

EVERY TIME THE EQUIPMENT IS USED : 
 

1.  CONTROL THAT THE TRIGGER RETURN SPRING IS EFFICIENT , AND THAT THE SCREWS, 

THE VALVES, AND ALL COMPONENTS ARE WELL INSTALLED AND EFFICIENT, IN CASE 
SOMETHING IS DAMAGED IMMEDIATELY DISCARD THE PART OR INFORM YOUR FOREMAN 
SO THE PARTS WILL NOT BE REUSED  

2.  CLEAN THE TOOL AND ITS HOSES AND THE REST OF THE EQUIPMENT  

 
3 - PERFORM A GENERAL INSPECTION OF ALL THE EQUIPMENT

  

 

 

MAINTENANCE OF THE OIL FLEXIBLE HOSE 
 

INSPECTION OF THE HOSE 
 

  Lay the flexible hoses on the floor and control if there are oil leaks and the hose 

surfaces are integral without peeled sections showing metallic braid with broken steel 
wires. 

 

  the  presence  of  little  sections  of  wire  braid  can  be  tolerated  only  if  the  wires  are  not 

broken and still braided. 

 

  Control  the  pressed  bushing  at  the  extremity  of  the  hydraulic  hoses  and  discard 

immediately hoses showing bending, squeezing, or deformations. 

 

  Check  that  the  quick  couplers  are  well  dry,  without  oil  leaks  and  that  the  knurled 

bushing  on  the  female  quick  coupler  is  intact  and  can  slide  freely  during  the 
connections. The male coupler should be intact, without dents and deformations. If you 
try  to  force  the  connection  of  a  damaged  male  coupler,  this  will  damage  irremediably 
also the female. 

 

  If the oil flexible hose and quick couplers show oil leaks, even if the couplers are well 

screwed into the hose fittings, they should be immediately substituted with new parts. 

 

  Replace hoses that show squeezing, unnatural bending, deformations, swellings, etc… 

 
CARE AND MAINTENANCE OF THE OIL FLEXIBLE HOSES 
 
The flexible hose can be cleaned with a hydro cleaner or pressure washer after having laid 
it on a clean surface. Clean with the water jet in particular near the area of the clips where 
the dirt is going to deposit.  
Move the hoses and wash completely in particular the quick couplers. 
Blow the hoses with an air gun in particular in the area of the quick couplers.  
Roll up the flexible hoses in a roll having a diameter of about 60-70 cm and connect the 
quick couplers at the ends in the “head/tail” way. This operation will protect them against 
impacts or scraping. 
Place the hose in a safe and dry place, protected from bumps and weather 
 

Summary of Contents for HD 13

Page 1: ...ATION AND MAINTENANCE MANUAL DOA s r l Via Cortiva 5 22060 NOVEDRATE Como ITALY TEL 39 031 792040 FAX 39 031 791917 www doa it E mail info doa it IMPORTANT READ MANUAL BEFORE USE KEEP THIS MANUAL FOR...

Page 2: ...SPEED 7 HYDRAULIC CHARACTERISTICS 7 GENERAL SAFETY NORMS 8 USE OF THE PRODUCT WHAT NOT TO DO 10 NEVER USE THE TOOL IF 11 BEFORE WORKING 12 USE OF THE TOOL 13 CUTTING OPERATIONS 14 END OF OPERATIONS 1...

Page 3: ...ESSORY PARTS OR SAFETY MANUALS OF THE MANUFACTURER OF SUB PARTS OR SUBCOMPONENTS OF DOA TOOLS COULD HAVE BEEN SUPPLIED TOGETHER WITH THIS MANUAL THESE ENCLOSURES ARE AN INTEGRAL PART OF THE MANUAL AND...

Page 4: ...cted This symbol indicates a dangerous operation or situation that can cause serious accidents or death This symbol warns about generic danger that can cause accidents and damages to the equipment or...

Page 5: ...nts accidental tool starting it can be pressed with minimal effort to guarantee operator comfort also in long cutting operations 2 RETURN HOSE T it is the tube where oil get out exit the tool and go b...

Page 6: ...drill can be used for underwater works the underwater model as specific bit attachment that is a simplified version of the SDSS MAX type the normal SDS MAX quick type chuck is not adequate for marine...

Page 7: ...g over the handle or with one hand only Kickback caused by a blocking of rotation could cause serious enjuries Do not inspect clean or change the bits while the oil is in pressure Always put off the h...

Page 8: ...PLERS INSTALLATION DEPENDS ON THE POSITIONING OF THE FIRST MALE COUPLER THAT HAS TO BE INSTALLED ALLWAYS ON THE P LINE OF PACK USE OF THE HAMMER DRILL OPERATIONS The HD13 is a hydraulic hammer drill t...

Page 9: ...NDS OF THE HOSES TO ONE ANOTHER 3 Choose the SDS MAX bits of the appropriate diameter 4 Check the wear of the bits If the bits in Widia or Tungsten are damaged or missing even the best drill will give...

Page 10: ...AND ABOVE ALL IN SALTY WATER AFTER USE THE TOOL MUST BE IMMEDIATELY ACCURATELY WASHED WITH FRESH WATER INSISTING IN THE RECESSED CAVITIES AND HIDDEN POINTS WHERE SALT MAY NEST THEN WITH AN AIR GUN ACC...

Page 11: ...ons Check that the quick couplers are well dry without oil leaks and that the knurled bushing on the female quick coupler is intact and can slide freely during the connections The male coupler should...

Page 12: ...LL FUELS ARE DANGEROUS WASTES THAT MUST BE DISPOSED ACCORDING TO THE LOCAL REGULATION OF YOUR COUNTRY OR MUNICIPALITY DON T THROW AWAY THE LIQUIDS AND MATERIALS OF THE ABOVE MENTIONED LIST THE INFRING...

Page 13: ...lthough we recommend that the repairs have to be carried out only by authorized DOA service agents some minor repairs can be carried out also by other engineers in this case follow these instructions...

Page 14: ...ON THE TOOL IN THE HOLE WITH P PUNCHED OIL ENTERS THE TOOL COLLECT THE DRIPPING OIL IN A CLEAN CONTAINER CHECK IF THE OIL IS DIRTY OR WITH IMPURITIES THIS WILL HELP IN FINDING SOME CAUSES OF PROBLEMS...

Page 15: ...R PACKAGING SUFFICIENTLY STRONG AND PROPORTIONAL TO THE TOOL WEIGHT IN ORDER TO PROTECT THE TOOL AND MAINTAIN ITS INTEGRITY PROBLEM CAUSE SOLUTION TRUBLE SHOOTING CHART THE FOLLOWING TABLE IS A GUIDE...

Page 16: ...or broken drive shaft Control repair or contact the nearest DOA service agent PROBLEM THE BIT TURNS BUT THERE ARE POOR PERFORMANCES TOOL HAS NO POWER CAUSE SOLUTION The flow control valves integrated...

Page 17: ...the nearest DOA service agent Back pressure too high Control and reduce hose length PROBLEM TOOL WORKS WELL BUT THERE ARE POOR PERFORMANCES CAUSE SOLUTION Drilling bits are inadequate to material or...

Page 18: ...number are covered by a LIMITED WARRANTY OF THREE MONTHS from the date of starting DOA reserves the right to substitute only those parts recognized to be defective after an inspection of DOA engineer...

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