Évaluations - 3, GPA: 3.7 ( )

Fabricant : Black & Decker Taille : 3.17 mb Nom Fichier : Langue d'enseignement:

(see back page). GROUNDING These units are equipped with approved 3-conductor cord and 3-prong grounding type attachment plug to be used with the proper grounding type receptacle, in accordance with the National Electrical Code and Canadian Electrical Code. IF YOUR UNIT REQUIRES LESS THAN 150 VOLTS IT HAS A PLUG THAT LOOKS LIKE FIG. “A”. It will fit directly into the proper type of 3-wire grounding receptacle. The unit is then grounded automatically each time it is plugged in. Shown in Fig. “B" is a special grounding adaptor (not allowed in Canada by the Canadian Electrical Code) which is available from your dealer and will permit using a 2-wire receptacle. The green grounding wire extending from' the • side of the adapter must be connected to a PERMANENT GROUND. IF THE UNIT REQUIRES FROM 150 TO 250 VOLTS, IT HAS A PLUG LIKE FIGURE. “CM. No adapter is available and 'it should be used in the proper standard matching 3-wire grounding receptacle. CABLE The cable is the “life line" of your tool—keep it clean by wiping it off occasionally. Keep it out of oils and greases which ruin the rubber. Coil it neatly when not in use and avoid dragging it across sharp surfaces or using it as a handle to lift the tool. When using the tool at a considerable distance from power source, an extension cable of adequate size must be used to prevent loss of power and over-heating. Use the table below for 115-volt tools. For 220-volt tools, use wire size corresponding to an extension length of y2 the contemplated length. Ampere rating 0 to 2.10 to 3.5 to 5.10 to 7.10 to ' 12.1 to (on nameplate) 2.0 3.4 5.0 7.0 12.0 ' 16.0 Ext. Cable length Wire Size (A.W.G.) 25 ft. 18 18 18 18 16 14 ■ ' • ; 50 ft 18 18 18 16 14 12 ..:75 ft.' 18 18 16 14 12 10 100 ft 18 16 14 12 10 ■,—, 150 ft. 16 14 12 12 ,— . ,—, 200 ft. 16 14 1? 10 — 2. OPERA TION—CLUTCHES In a!! Black and Decker Scruguns, a.clutch provides a “dead” or stationary front- spindle to permit the driving accessory to ‘locate" the screw slot or nut. Forward pressure then engages the clutch and drives the fastener. No. 12 Scruguns are equipped with either a. “Positive” or “Adjustable" clutch. Operation of these clutches is as follows: CLEANING With the tool motor running, blow dirt and dust out of all air vents with dry air at least once a week. Also blow any dirt out of Switches, Quick-change Chuck or Screw Depth Locator. Ifyourtool has a Locator, it should be disassembled after each day's work and all parts cleaned with kerosene or other cleaning solvent. Preferably, dry parts with an air hose with the motor running. Positive Clutch—With the positive clutch, output torque of the screwdriver is directly controlled by operator pressure against the fastener. A heavy forward pressure will hold the clutch engaged to a high torque; while light forward pressure allows the clutch to disengage at a lower torque. Release of pressure completely disengages the clutch. Maximum torque on a fastener is reached by maintaining forward pressure on the tool and allowing the clutch to ratchet momentarily; the resultant hammering will further tighten the fastener. POSITIVE CLUTCH Adjustable Clutch—The adjustable clutch mechanism allows the operator to drive a series of fasteners to a pre-set uniform torque. Torque output is controlled mechanically by a spring loaded clutch mechanism and operator pressure on the tool has no effect on output. The adjustable clutch mechanism is also provided with a dead spindle so that complete release of pressure on tool will disengage output spindle. To adjust the clutch, slide the locking ring toward the gear case. This action unlocks the adjusting ring and allows it to be rotated. Turning the adjusting ring so that it moves toward the gear case will increase the output torque of the clutch. An increase in the force required to turn the adjusting ring indicates that the clutch setting is increasing. -Turning the ring so that it moves away from the gear case will decrease the clutch setting. This is matched with a decrease in effort required to turn the adjusting ring. CAUTION: Once the adjusting ring is free from spring pressure additional loosening has no. further effect on the clutch and should be avoided. If the adjusting ring is loosened too far it will come off tfte"' tool allowing the locking ring and spring also to come off. No damage is done and these can be reassembled by operator. SPRING MECHANISM ADJUSTABLE CLUTCH LUBRICATION Black and Decker Tools are completely lubricated at factory and are ready for use. Gears should be relubricated every 60 days to 6 months depending upon use. To lubricate, remove gear case, wipe out old grease, and refill gear case with B&D Heavy-Duty Grease to the amount specified on the Parts List packed with your tool. It is also recommended that the clutch faces be given a light greasing after every 50 hours of usage.. Refer to “exploded" parts bulletin (included with your tool) if you have any d...

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