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5.S

ERVICE

 

A

ND

 

M

AINTENANCE

 

1.

 

Have the screwdriver or components repaired by a qualified or trained person only. 

2.

 

For  the  purpose  of  making  proper  use,  request  the  following  check  and  maintenance  by  an  authorized 
service facility. 

DLV7300 series 
Routine inspections and 
Parts to be replaced 

Number of Tightening (million) 

0.5 

1.0 

1.5 

2.0 

Routine inspection 
(1) Operation check 

 

 

 

 

(2) Grease-up 

 

 

 

 

(3) Brake switch timing check 

 

 

 

 

Routine inspection and parts to be replaced 
(1) *Brush assembly 

 

 

 

 

(2) Armature assembly 

 

 

 

 

(3) Power cord 

 

 

 

 

(3) Spindle gear head assembly 

 

 

 

 

(4) Gear case assembly 

 

 

 

 

(5) *Cam rollers and Cam guide balls 

 

 

 

 

(6) Cam guide 

 

 

 

 

(7) Spindle bearing 

 

 

 

 

 
* Brush assembly 
  If the remainder length of the brush reaches 3mm, change it for the new brush. 

When you return the brush again after having checked it, do not insertion opposite side. 

  Keep former condition. 
 
 
 
 
 
 

       

WARNING   

Switch off and take off the plug when you change the brush. 

 
Contents for operation check 

Operation check items 

Check procedure 

(1)  Does  screwdriver  rotate  for  both 
directions smoothly? 

With tool plugged, turn on the reverse switch to forward or 
reverse position and turn on the switch. 
Then check if the tool rotates smoothly. 

(2) Does screwdriver stop at one index of 
the clutch? 

Check if the motor stops instantly at the moment a screw was 
tightened up. 

(3) Is the torque decreasing? 

Check by torque checker or equivalent. 

 
 
 
 
 
 
 
 
 
 
 

3mm 

Summary of Contents for Delvo DLC1213-LUB

Page 1: ...L Electric Screwdriver Models Screwdriver Controller DLV7321 BKU DLC1213 LUB DLV7331 BKU Manufactured by NITTO KOHKI CO LTD 2 9 4 Nakaikegami Ohta ku Tokyo 146 8555 Japan Tel 03 3755 1111 Fax 03 3753...

Page 2: ...h if not avoided by following the instructions given could result in injury or material damage Please note however that failure to observe safety precautions under the Caution category could result in...

Page 3: ...efficient work use the proper bit and check it regularly Check the cable regularly Contact sales agents to repair it when it is defective When an extension cable is used check regularly and change it...

Page 4: ...eing used move the changeover switch to the O Off position and unplug the screwdriver 12 Do not overload to the extent that the motor locks or the clutch malfunctions May cause smoke fire failure or i...

Page 5: ...serve as an antistatic one It has the same output torque and free speed as the standard type WARNING Pay attention that an abnormal voltage or anything abnormal is not generated in the ground or you...

Page 6: ...ped screw is returned with torque wrench or the like is available as one of torque control methods However note that the measured values by the return torque method generally appear in 10 30 lower tha...

Page 7: ...ion Screwdriver DLV7300 Series Changeover Switch Torque Adjustment Ring Power Cord 3m Controller DLC1213 LUB Speed adjustment volume Soft start adjustment volume Receptacle Power switch Start Switch P...

Page 8: ...s off immediately and the motor stops at the same time Return the trigger to the original position 4 Unscrewing Turn the changeover switch to reverse and trigger the switch 4 Use the screwdrivers in c...

Page 9: ...d Cam guide balls 6 Cam guide 7 Spindle bearing Brush assembly If the remainder length of the brush reaches 3mm change it for the new brush When you return the brush again after having checked it do n...

Page 10: ...switch set to or Set the changeover switch at or 2 Output torque is low Is the output torque correctly set Check it by Torque Checker 3 The screwdriver is overheating abnormally How much time is OFF t...

Page 11: ...11 Notes...

Page 12: ...12 Manufactured by NITTO KOHKI CO LTD 2 9 4 Nakaikegami Ohta ku Tokyo 146 8555 Japan Tel 03 3755 1111 Fax 03 3753 8791...

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