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DRESSING THE GRINDING WHEEL 

1. Shape the wheel "freehand" by holding the dresser 

against the wheel while it is running. Use a circular 
motion to produce the desired curvature on the 

wheel. 

2. Stop the motor and check the wheel shape with the 

radius gauge. 

3. The chart on page 7 shows the recommended 

wheel thickness for different chains. 
A narrower wheel may be used instead of the one 

recommended in the chart, if it is dressed as shown 

in Fig. No. 3. For example, if the chart calls for a 

1/4

"

 thick wheel, a 3/16" thick wheel can be dressed 

to fit one side of the 1/4

 "

 gauge. This will be helpful 

on certain chains where the thicker wheel may in-

terfere with the depth gauges. 

Illustration No. 3 

GRINDING CHIPPER CHAIN 

1. Choose and dress the grinding wheel as explained 

above. Refer to Fig. No. 6 for correctly ground chip-

per cutter. 

2. Lay the chain in the vise with the cutting edges fac-

ing to the left. 

3. Tilt the grinding head to 30° and lock. 

4. Set and lock the chain vise at 35° to the left (rotat-

ing clockwise from 0°). See Illustration No. 4. 

5. Set chain vise to 0° on the horizontal scale and lock 

in place. 

6. Position the stop finger behind the right hand cutter 

to be ground and align the tooth to the grinding 

wheel. Set the depth stop. 

7. Turn motor switch to "Forward" position (counter-

clockwise rotation when viewed from wheel end of 

shaft) and adjust the stop finger to give the lightest 

grinding pass that will sharpen the tooth properly. 

Grind all right hand cutters in the chain without 

changing your set up. 

Illustration No. 4 

Page 4 

8. Swing chain vise to the right and lock at 35°. See 

Illustration No. 5. 

9. Position stop finger behind a left hand cutter and 

align the tooth to the grinding wheel. Change only 

stop finger position if necessary. 

10. Grind all left hand cutters with the motor switch in 

the "Reverse" position. 

11. After sharpening the chain and before removing 

it from the grinder check the depth gauge by lay-

ing a short straight edge across the top of two 

cutters then using a feeler gauge to measure the 

distance between top of depth gauge and bottom 

of straight edge. Proper depth gauge setting is 

shown on chart page 7... Depth gauges can also 

be checked by using #370362 Oregon Adjustable 

Depth Gauge. 

If depth gauges need to be lowered, use a 5/16" thick 

grinding wheel. Dress the wheel to match the contour 

of the depth gauges (See Illustration No. 7). Set the 

grinding head to 0° and to 0° on both the chain vise 

scale and the horizontal scale. Set the depth control to 

give proper height and grind all depth gauges. 

3/16 WHEEL 

1/4 GAUGE 

Содержание 308

Страница 1: ...OPERATING INSTRUCTIONS 308 FOLEY SAW CHAIN GRINDER SERVICE MANUAL NO R001088 i V FOLEY MANUFACTURING COMPANY 3300 FIFTH STREET NORTHEAST MINNEAPOLIS MINNESOTA 55418 ...

Страница 2: ...t parts will be furnished free of charge when defective part is returned postpaid for inspection Guarantee does not cover damage sustained in transit or caused by misuse We reserve the right to make changes in design construction or materials on all Foley machines without notice FOLEY MANUFACTURING COMPANY Service Department 3300 Fifth St N E MINNEAPOLIS MINNESOTA 55418 Telephone 612 789 8831 Prin...

Страница 3: ......

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Страница 5: ...he new parts needed enter your claim for their value against the delivering carrier Return entire machine to Minneapolis for com plete rebuilding only in case of serious damage Alternatively you may ask the factory to repair or replace without cost to you In this case the following papers must be sent to Minneapolis so parts replace ment may be assessed againsi the transportation com pany a Itemiz...

Страница 6: ... wear eye protection when operating any grinding machine GENERAL CHAIN TYPES There are several general chain types that you must recognize to sharpen properly The Oregon 80 chain is one that is used on saws that have built in sharpeners The cutters have a distinc tive shape see illustration on page 6 and will not be mistaken for either of the other types The most common types of chain are either t...

Страница 7: ...grind too deep See Illustration No 6 and notice that the cutters are not ground to the bottom of the gullets Do not grind into tie straps or drive links 3 Before grinding the chain a Remove oil and pitch from the chain to prevent grinding wheel glazing and gumming b Examine the chain for bent or cracked links c Check for worn or broken drive links d Check for tight pin joints Page 3 CORRECTLY GROU...

Страница 8: ...d align the tooth to the grinding wheel Set the depth stop 7 Turn motor switch to Forward position counter clockwise rotation when viewed from wheel end of shaft and adjust the stop finger to give the lightest grinding pass that will sharpen the tooth properly Grind all right hand cutters in the chain without changing your set up Illustration No 4 Page 4 8 Swing chain vise to the right and lock at...

Страница 9: ...ng too deep If there is blackslope on the teeth the chain will not feed properly and will require excessive down pressure to make it cut This causes undue wear on chain and chain bar If there is backslope on the teeth check radius of wheel with radius gauge as too large a radius will cause backslope Another possible cause of back slope is not grinding deep enough Illustration No 8 Page 5 GRINDING ...

Страница 10: ...he wheel 2 Place chain into chain vise and position stop finger behind a right hand cutter 3 The chain vise should be set at 0 on the scale and the 0 position on the horizontal scale Grinding wheel should be set at 10 right on the grinding head scale Grind the tops of all right and left cutters the same height Illustration No 9 4 To grind depth gauges set the stop finger behind a right hand cutter...

Страница 11: ...9 16 5 8 3 4 WHEEL THICKNESS 1 8 1 8 1 8 OR 3 16 1 8 OR 3 16 3 16 OR 1 4 3 16 OR 1 4 3 16 OR 1 4 3 16 OR 1 4 1 4 OR 5 16 USE GAUGE 1 8 1 8 3 16 3 16 1 4 1 4 1 4 1 4 5 16 DEPTH GAUGE SETTING 020 025 025 030 030 030 040 060 060 RECOMMENDED WHEEL THICKNESS Page 7 ...

Страница 12: ...634 PART NAME Overarm Base Motor Mount Motor Sheave Switch Cover Pivot Plate Spacer Bar Outer Flange Pointer Stop Finger Foot Pedal Top Rod Vise Plate Lock Rod Bracket Chain Spring Quadrant Scale Lock Stud Handwheel Overarm Locking Knob Spacer Slide Plate Spacer U Bolt Horizontal Pointer Spacer Anvil Lock Screw Pivot Bar Weldment S Hook Slide Plate Weldment Mandrel Bearing Ass y Vise Shaft Lever A...

Страница 13: ......

Страница 14: ... Long Hex Cap Sc 1 4 20 NC x 1 2 Long Hex Cap Sc 1 4 20 UNC x 5 8 Long Hex Cap Sc 1 4 20 UNC x 3 4 Long Flat Hd Cap Sc 1 4 20 UNC x 1 Long Hex Cap Sc 1 4 20 UNC x 3 Long Sock Set Sc 10 24 UNC x 3 8 Long Sock Set Sc 1 4 20 UNC x 1 4 Long Slotted Set Sc Cone Point 3 8 16 UNC x 1 1 4 Long Wood Sc 10 x 1 1 4 Long Lag Sc 1 4 20 x 1 Long Hex Nut 3 8 16 UNC Hex Jam Nut 1 2 20 NF Sock Hd Cap Sc 1 4 20 UNC...

Страница 15: ...394930 PEDESTAL ...

Страница 16: ...9 Pedestal Base 4 B250801 Hex Cap Screw 1 4 20 NC x 1 2 Long 5 B311201 Hex Cap Screw 5 16 18 NC x 3 4 Long 6 C371600 Sq Hd Set Screw 3 8 16 NC x 1 Long Cup Point 7 J372000 Hex Jam Nut 3 8 16 NC PARTS LIST FOR 394930 PEDESTAL SAW CHAIN GRINDER OPTIONAL EQUIPMENT ...

Страница 17: ......

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