Hitachi C 8FSHE Adjustment of Components, Bevel angle adjustment, Ball bushing Linear bearing

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Fig. 34

ADJUSTMENT OF COMPONENTS

1. Bevel angle adjustment

Before shipping from the factory, the height of 8-mm bolts (A) and (B) is adjusted so that the saw blade section (head) will stop at 0° (right angle), and 45° to the left. To change the head stop positions, instruct the customer to adjust the height of 8-mm bolts (A) and (B) by turning them.

CAUTION:

If there is any clearance between the tip of 8-mm bolt (A) (stopper for 0°) and the fixing pin, the angle of the saw blade relative to the upper surface of the turn table may not be an exact right angle. (8-mm bolts (A) and (B) are located at the holder (A).) Press down on holder (A) and lock it in position with the clamp lever so that there is no clearance between the fixing pin and 8-mm bolt (A).

Fig. 33-a

Fig. 33-b

8 mm bolt (A) (Stopper for 0°)

8 mm bolt (B)

(Stopper for left 45° bevel angle)

2. Ball bushing (Linear bearing)

(1) Structure of the ball bushing The ball bushing is commonly called a linear

ball bearing. Inside the bearing is elongated guide grooves in which steel balls circulate and roll when a load is applied. (as indicated by the arrow marks in Fig. 34). This type of device is widely used in automated machine tools. The advantage of the ball bushing is that its friction coefficient remains largely unchanged even when the load is increased, ensuring smooth sliding movement.

In addition, slide pipe (B), made of bearing steel and heat treated to a high degree of hardness (HRC 62 to 65), is highly resistant to wear.

Sales persons should have a good understanding of the structure and rugged characteristics of this exceptional mechanism to enhance sales promotion.

(2)Lubrication

If it is necessary to replace the ball bushing, apply approximately 2 grams (0.1 oz) of grease (Nippeco SEP 3A) on the steel balls and within the guide grooves of the new ball bushing. If grease is not applied, it will shorten the service life of the ball bushing, and subsequent abrasive contact between the steel balls and slide pipe (B) will cause abnormal noise during slide cutting operations. Customers should be instructed to thoroughly remove sawdust and other foreign matter from slide pipe (A) and slide pipe (B) and liberally coat them with machine oil at least once a month.

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Contents Models C 8FSE, C 8FSHE Remark Contents Laser marker Only the Model C 8FSHE Selling Point DescriptionsPositive angle stoppers Slide cutting Miter cutting Compound miter and bevel cutting Specifications Specifications· 216 mm 8-1/2 TCT saw blade 15.9 mm 5/8 bore, NT24 Specification comparisons Comparisons with Similar ProductsFor Europe and others Except for the U.S.A and Canada C8FSE/C8FSHE 8FB2 Right angle For the U.S.A and CanadaFull-load current a 9.2 a Safety instructions Precautions in Sales PromotionPage Laser marker only the Model C 8FSHE Relative standardsAmbient illuminance and visibility of laser line Precautions concerning brakeAdjustment and Operational Precautions Confirmation for use of sub fence Optional accessoryConfirmation of saw blade lower limit position Position adjustment of laser line Only the Model C 8FSHE Adjustment of table insert position How to use the vise assemblyCutting operation Page Bevel scale Clamp lever Tighten Crown molding stopper R Page Adjustment of Components Bevel angle adjustmentBall bushing Linear bearing Packing Precautions in disassembly and reassembly Repair GuideTurn table and base assy Page Then remove the Lower Guard 215 from the Bearing Holder Lower guard, link, spindle assy and dust guidePage Armature assy and lock lever Page Vise ass’y Laser markerSpecial attention ReassemblyWiring diagram Page Page Page Reassembly requiring adjustment Checking of insulation distanceNo-load current Product precision LubricationAdjustment of laser marker accuracy Page Page 211 Troubleshooting guideBushing 115 and slide Page 160 107 8FSHE Standard Repair Time Unit Schedules8FSE Slide Compound SAW 8FSHE 501 Parts SUB Fence For USA, can Nylon Clip Ball Bearing 608VVC2PS2L Standard Accessories Model C 8FSE 8FSE 162 153 152 8FSE Scale a For USA, can Carbon Brush 1 Pair For GBR 110V, USA, CAN, VEN, TPE Lock Lever Spring Includ 626
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