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12 ► ZGG81 

User Manual

continuing.

10. Start the grinder and move the grinding wheel to 

the work surface.

NOTE: Rest your leg against the leg brace to increase 

your leverage on the grinding wheel.

11. 

Grind a small amount of material at a time.

12. 

Grind the web, then move grinder over the rail 

head and grind the second web.

13. When finished, turn off the power supply and 

disconnect the hose whips.

14. 

Release handle lock (see figure 2) and rest the 

handle back in the cradle and lock in place.

15. Lift up and rotate clamp lever (see figure 1) and 

remove grinder from rail.

COLD WEATHER OPERATION

If the grinder is to be used during cold weather, preheat 

the hydraulic fluid at low engine speed. When using the 

normally recommended fluids, fluid temperature should 

be  at  or  above  50  °F/10  °C  (400  ssu/82  centistokes) 

before use.

OPERATION

OPERATION

1.  Before placing the unit on the rail, loosen 

Rear 

Adjuster

 (see figure 1), raising the 

Roller

.

2.  Open the 

Wheels

 by lifting the 

Clamp

 

Lever 

and 

rotate wheels so they are sideways.

3.  Place on rail, lift and rotate 

Clamp

 

Lever/wheels 

and lock the pin in place.

4.  Tighten 

Rear Adjustor

 until the roller touches rail, 

do not over tighten

, the clamp will roll freely.

5.  Pull 

Handle Lock Release

 (see figure 2) and lift 

handle to the operating position. Verify the lock is 

engaged in the side plate.

6.  Connect hose whips.

7. 

Rotate the motor to the side of rail to be ground.

8.  Move the hydraulic circuit control valve to the 

ON

 

position

9.  Squeeze the trigger momentarily. If the grinder 

does not operate, the hoses might be reversed. 

Verify correct connection of the hoses before 

Rear Adjuster 

Roller 

Clamp Lever 

Wheels

FIGURE 1

Handle Lock 

Release 

Operating Position

Hose Coupler

Trigger 

Cradle

Leg Brace

FIGURE 2

Summary of Contents for ZGG81

Page 1: ...2017 Stanley Black Decker Inc New Britain CT 06053 U S A 76531 8 2017 Ver 1 USER MANUAL Safety Operation and Maintenance ZGG81 ZGG81 N ZERO GRAVITY WEB GRINDER...

Page 2: ......

Page 3: ...OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN AUTHORIZED AND CERTIFIED DEALER For the nearest certified dealer call Stanley Hydraulic Tools at 503 659 5660 and ask for a Customer Service Representat...

Page 4: ...y messages that follow this symbol to avoid possible injury or death This safety alert and signal word indicate an imminently hazardous situation which if not avoided will result in death or serious i...

Page 5: ...he tool at oil temperatures above 140 F 60 C Operation at higher temperatures can cause higher than normal temperatures at the tool which can result in operator discomfort Do not operate the tool with...

Page 6: ...l immediately and determine the cause Do not use the tool until the defect is corrected If the grinder is dropped with an abrasive wheel installed the abrasive wheel should be examined thoroughly befo...

Page 7: ...potential pinch points or moving parts indicated by the arrows shown here OPERATING POSITION CARRY AND STORAGE POSITION CAUTION PINCH POINT KEEP CLEAR OF MOVING PARTS CAUTION PINCH POINT ARM FRAME COL...

Page 8: ...BSORBENT CLOTH TO REMOVE DIRT AND MOISTURE AND TEST HOSE FOR MAXIMUM ALLOWABLE CURRENT LEAKAGE IN ACCORDANCE WITH SAFETY DEPARTMENT INSTRUCTIONS SEE OTHER SIDE SIDE 2 D O N O T R E M O V E T H I S T A...

Page 9: ...4 Return 2500 175 13 16 49 60 up to 25 up to 8 5 8 16 Pressure 2500 175 3 4 19 Return 2500 175 13 16 49 60 26 100 8 30 3 4 19 Pressure 2500 175 1 25 4 Return 2500 175 Figure 1 Typical Hose Connection...

Page 10: ...5 bar 152 159 bar 145 155 bar 250 psi 250 psi 250 psi 250 psi 17 bar 17 bar 17 bar 17 bar 400 ssu 400 ssu 400 ssu 400 ssu 82 centistokes 82 centistokes 82 centistokes 82 centistokes 140 F 140 F 140 F...

Page 11: ...itled Safety Precautions Tool Stickers And Tags Hydraulic Hose Requirements Hydraulic Requirements And Preparation Procedures before using this product NOTE Use 8 inch by 1 inch thick Type 1 grinding...

Page 12: ...ve 50 F 10 C 400 ssu 82 centistokes before use OPERATION OPERATION 1 Before placing the unit on the rail loosen Rear Adjuster see figure 1 raising the Roller 2 Open the Wheels by lifting the Clamp Lev...

Page 13: ...Make sure all couplers are wiped clean before connection The hydraulic circuit control valve must be in the OFF position when coupling or uncoupling hydraulic tools Failure to do so may result in dam...

Page 14: ...ource for proper oil temperature Bypass cooler to warm oil or provide cooler to maintain proper temperature Relief valve set too low Adjust relief valve to 2100 2250 psi 145 155 bar Hydraulic motor wo...

Page 15: ...38 LPM Porting 8 SAE O ring Couplers HTMA EHTMA Flush Face Type Male Female Hose Whips Yes Weight with whip hoses couplers 48 1 lb 21 8 kg Overall Length 32 5 inches 82 5 cm Overall Width 11 inches 2...

Page 16: ...14 14 14 ZGG81 81 N MOTOR PARTS ILLUSTRATION NOTE MOTOR IS A CCW ROTATION ITEM 20 and 28 TORQUE TO 225 IN LBS ITEM 41 TORQUE TO 37 IN LBS ITEM 14 QTY 6 TORQUE TO 225 IN LBS NOTE GREASE O RINGS SEALS...

Page 17: ...od Wiper 18 25635 1 Flow Regltr crtrdg 19 25666 2 Drive Gear 20 73021 1 Sae Orb Plug Modified 21 73308 1 Idler Shaft Keyed 22 74890 1 Roll Pin 3 32 X 75 Lg 23 206095 1 Retaining Ring 24 74866 1 Motor...

Page 18: ...l ZGG81 81 N QUAD ARM ASSEMBLY ILLUSTRATION CAUTION DO NOT DISASSEMBLE ITEM 8 GAS SPRING UN DER HIGH PRESSURE CONNECTION AA CONNECTS TO ITEM 32 PAGE 16 1 2 3 4 5 6 7 8 9 9 10 11 12 12 13 14 14 15 16 1...

Page 19: ...cludes 2 Serrated Bushings 2 Du Bushings 8 208043 1 Gas Spring 9 208046 2 Spacer Sleeve 10 208048 1 Gimbal Lug Assembly Includes Bearings Bushing Retainer Ring 11 208049 1 Frame Lug Assembly Includes...

Page 20: ...29 46 11 7 1 1 23 23 7 39 ZGG81 81 N CLAMP PARTS ILLUSTRATION ITEM 10 APPLY 263 LOCTITE TORQUE TO 23 FT LBS ITEM 15 APPLY 263 LOCTITE ITEMS 49 6 APPLY 263 LOCTITE TORQUE TO 13 FT LBS ITEM 43 APPLY 26...

Page 21: ...pacer Lower Wheel 33 210847 1 Spindle Quad Arm 34 210849 1 Clamp Assembly Includes Dowel Pins 4 Du Bushings 36 210851 1 Lever Rod Wheel Pivot 37 210852 1 Wheel Pivot Follower 38 210853 2 Thrust Washer...

Page 22: ...4 21962 4 Socket Head Cap Screw 5 79213 1 Pad 6 79197 1 Leg Brace Weldment 7 203222 4 Capscrew 8 79270 1 Leg Brace Clamp 9 79206 1 Trigger Cable Assembly 10 27441 1 Thumb Latch 11 27445 1 Latch Spring...

Page 23: ...Ring 7 01228 1 Roll Pin 1 8 x 7 8 8 79196 1 Left Mounting Bracket 9 206083 1 Retaining Ring 10 206084 1 Spring ITEM PART QTY DESCRIPTION 11 206085 1 Plunger Cap 12 79201 1 Plunger 13 208849 1 Button...

Page 24: ...4 02689 3 O Ring 7 10793 1 Capscrew 8 25354 1 Outside Flange 9 25355 1 Drive Flange 10 25414 1 Caution Sticker Ccw 17 206088 1 Inner Guard Assembly 27 211154 1 Guard Front Plate 1 2 3 4 7 8 9 10 17 2...

Page 25: ...162 76678 2 Spiral Hose Wrap 24 163 208848 2 Hose Assy Railroad 32 ITEM REV DESCRIPTION HOSE GROUP ZGG81 1 Zero Gravity Grinder A ZGG81 N 1 Zero Gravity Grinder BN B ITEM PART NO QTY HOSE GROUP A PARK...

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Page 28: ...Stanley Hydraulic Tools 3810 SE Naef Road Milwaukie Oregon 97267 5698 USA 503 659 5660 Fax 503 652 1780 www stanleyhydraulics com...

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