Also the torque when the battery has just been charger. charged and when it is about to run out are slightly 17. Use only genuine HITACHI replacement parts. different. Use a torque wrench to check that the bolt 18. Do not use power tools for applications other than has been tightened with the appropriate torque.
9. Never let the impact wrench turn without a load 13. Never disassemble the rechargeable battery and when using the universal joint. charger. If the socket turns without being connected to a 14. Never short-circuit the rechargeable battery. Short- load, the universal joint causes the socket to turn circuiting the battery will cause a great electric wildly.
Page 7
2. Sockets Form B Form C Form D Table 1 Square Suitable Bolt Diameter Main Socket Hexagonal head drive Dimensions (mm) Part Name Form width across Code No. High Inch dimensions flats H (mm) S (mm) tension (ordinary) (small) bolts øF 10 mm 944291...
4. Extension bar: Code No. 873633 The extension bar is convenient for working in very restricted spaces or when the socket provided cannot reach the bolt to be tightened. CAUTION When the extension bar is used, the tightening torque is reduced slightly compared with the ordinary socket.
Page 9
When the pilot lamp does not go off even if more 〈UC14YFA〉 than two hours have elapsed after starting of the charging, stop the charging and contact your HITACHI Before using the impact wrench, charge the battery as AUTHORIZED SERVICE CENTER.
When the pilot lamp flikers in red quickly (at 0.2- (2) Regarding the temperatures of the rechargeable second intervals), check for and take out any foreign battery. The temperatures for rechargeable batteries are as objects in the charger’s battery installation hole. If shown in the table below, and batteries that have there are no foreign objects, it is probable that the become hot should be cooled for a while before...
2. Cautions on use of the speed control switch wrench with the bit stored incomplete. This switch has a built-in, electronic circuit which Only Hitachi OPTIONAL ACCESSORIES plus driver steplessly varies the rotation speed. Consequently, when bits (Bit No. 2; Code No. 992671, Bit No. 3; Code the switch trigger is pulled only slightly (low speed No.
Page 12
6. Confirm the tightening torque (4) Tightening conditions The following factors contribute to a reduction of The tightening torque differs according to the torque the tightening torque. So confirm the actual ratio; class, and length of bolts even when bolts tightening torque needed by screwing up some with the same size threads are used.
C: No. Used D: Remarks CAUTION Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance.