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MODEL H8253
AIR BELT SANDER
INSTRUCTION MANUAL
COPYRIGHT © DECEMBER, 2007 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#JB10165 PRINTED IN CHINA
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SAFETY For Your Own Safety Read Instruction Manual Before Operating This Equipment The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures. Indica
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16. DO NOT FORCE TOOL. It will do 7. AVOID ENTANGLEMENTS. Do not the job better and safer at the rate wear loose clothing, gloves, neck- for which it was designed. ties, rings, bracelets, or other jewel- 17. CHECK FOR DAMAGED PARTS ry, which may get caught in moving BEFORE USING. Check for bind- parts, when operating this tool. Wear ing and alignment of parts, broken a protective hair covering to contain parts, part mounting, loose bolts, long hair. and any other conditions that may 8
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INTRODUCTION Foreword Specifications The specifications, details, and Motor Speed ........................... 18,000 RPM photographs in this manual represent Air Consumption ............................ 28 CFM 1 the Model H8253 as supplied when the Air Inlet ...................................... ⁄4"-18 NPT manual was prepared. However, owing to Required PSI .............................. 70-90 PSI Grizzly’s policy of continuous improvement, Maximum PSI .................................. 90 PSI
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Compressed Air System Exceeding the maximum permissible operating pressure may damage the sander and cause it to malfunction. To The Model H8253 is designed to be protect yourself from personal injury, operated between 70-90 PSI using clean, DO NOT allow the air pressure to dry, regulated, compressed air. DO NOT exceed the recommended pressure exceed the 90 PSI maximum operating for this sander! pressure for your sander. Avoid overlubricating, as excess oil may Before using your new
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ASSEMBLY Attaching the Handle The Model H8253 must be assembled before use. Assembly consists of 1. DO NOT YET CONNECT THE connecting the contact arm assembly to SANDER TO THE AIR SUPPLY! the air motor and attaching the handle. 2. Thread the handle into the handle arm, as shown in Figure 4. Connecting the Contact Arm 1. DO NOT YET CONNECT THE SANDER TO THE AIR SUPPLY! 2. Slide the contact arm assembly onto the air motor, making sure it is snug Handle against the shoulder, as shown in Fig
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OPERATIONS Sanding Belt Installing the Sanding Belt 1. DISCONNECT THE SANDER FROM THE AIR SUPPLY! 2. Place the sanding belt over the contact wheel, as shown in Figure 5. Read the manual before operation. Become familiar with this tool, its Belt safety instructions, and its operation before beginning any work. Serious personal injury may result if safety or operational information is not understood or followed. Contact Wheel Figure 5. Preparing the sanding belt. Like all tools there is p
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4. Attach the belt guard with the M4-.7 x 6 cap screw, as shown in Figure 7. EYE/LUNG/EAR Belt Guard INJURY HAZARD! Wear protective equipment when using this tool. ACCIDENTAL START HAZARD! Disconnect before service or tool Cap Screw changes. Valve Screw AIR PRESSURE Figure 7. Installing guard. HAZARD! Never exceed the maximum PSI Replacing the Sanding Belt rating for tool. When the sanding belt loses its effectiveness, is damaged, or shows signs Operation of excessive wear, it must b
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Adjusting the Belt Tracking Adjustments The sanding belt must be centered on the contact wheel to avoid damaging the sander and to allow for optimal sanding. Adjusting the Contact Arm and Handle To adjust the belt tracking: 1. Loosen the cap screws shown in Figure 10. 1. Connect the sander to compressed air regulated at 70-90 PSI. 2. Hold the sander firmly and press the throttle lever to turn it ON. Once the Cap Screws belt has reached full speed, turn the adjustment knob to adjust the b
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MAINTENANCE Cleaning Lubrication The air sander MUST have 2-6 drops of Keeping the sander clean is vital to its oil dropped directly into the air inlet before operation and leads to longer tool life. and after each use and before storage. After every use, clean and inspect the sander. After oiling, remove the sanding belt, then run the sander to purge excess oil. Wipe • Wipe the housing with a dry cloth, or the tool down with a rag, re-install the blow off the dust and debris with com-
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H8253 MAIN BREAKDOWN -10- Model H8253 Air Belt Sander �� �� �� �� �� �� �� �� �� �� � � � � �� � � � �� � �� �� � �� �� ��
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H8253 MAIN PARTS LIST REF PART # DESCRIPTION 1 PH8253001 CONTACT ARM ASSEMBLY 2 PH8253002 PLUG 3 PH8253003 GUIDE POST 4 PH8253004 COMPRESSION SPRING 5 PH8253005 TENSION ARM 6 PH8253006 KNOB M4-.7 X 22 7 PH8253007 COMPRESSION SPRING 8 PH8253008 TENSION SHAFT 9 PH8253009 DUST COVER 10 PFH41M FLAT HD SCR M4-.7 X 16 11 PH8253011 MAIN HOUSING 12 PN06M HEX NUT M5-.8 13 PH8253013 BELT GUARD 14 PSB110M CAP SCREW M4-.7 X 6 15 PH8253015 BALL BEARING R4RS 16 PH8253016 HANDLE ASSEMBLY 17 PSB41M CAP SCREW M4
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H8253 MOTOR BREAKDOWN -12- Model H8253 Air Belt Sander ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ��� ���
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H8253 MOTOR PARTS LIST REF PART # DESCRIPTION 101 PH8253101 DRIVE WHEEL 102 PH8253102 EXHAUST COVER 103 PH8253103 FELT SILENCER 104 PH8253104 AIR CONTROL RING 105 PH8253105 ROTOR NUT 106 P6000 BALL BEARING 6000ZZ 107 PH8253107 SHIM 108 PH8253108 SPACER 109 PH8253109 FRONT BEARING CUP 110 PH8253110 PIN 111 PH8253111 CYLINDER 112 PH8253112 ROTOR 113 PH8253113 BLADE 114 PH8253114 REAR BEARING CUP 115 P608 BALL BEARING 608ZZ 116 PH8253116 MOTOR HOUSING 117 PH8253117 SPECIAL SCREW 118 PH8253118 GASKE
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