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Summary of Contents for Stanley PR41
- Page 1 PR41 HYDRAULIC PRUNER WARNING AFETY PERATION AND AINTENANCE SERVICE MANUAL Stanley Hydraulic Tools 3810 SE Naef Road Milwaukie OR 97267-5698 © Stanley Hydraulic Tools 2005 503-659-5660 SVCE/MAINT USA / CE FAX 503-652-1780 Printed in U.S.A. www.stanley-hydraulic-tools.com 32471 9/2005 ver 2...
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Page 3: Table Of Contents
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN AUTHORIZED AND CERTIFIED DEALER. For the nearest authorized and certifi ed dealer, call Stanley Hydraulic Tools at the number listed on the back of this manual and ask for a Customer Service Representative. -
Page 4: Safety Symbols
SAFETY SYMBOLS Safety symbols and signal words, as shown below, are used to emphasize all operator, maintenance and repair actions which, if not strictly followed, could result in a life-threatening situation, bodily injury or damage to equip- ment. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. -
Page 5: Safety Precautions
If so, place the added precautions in the space provided in this manual. The models PR41 Hydraulic Pruner will provide safe and dependable service if operated in accordance with the instructions given in this manual. Read and un- derstand this manual and any stickers and tags attached to the pruner and hoses before operation. - Page 6 • Only use blades manufactured by Stanley Hydraulic Tools. Stanley assumes no responsibility for failure in equipment, accidental damage, or accidental injury as a result of the use of blades not manufactured by Stanley Hydraulic Tools. • Always ensure the blade is sharp. Do not try to use the tool with a dull blade.
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Page 7: Tool Stickers & Tags
USE ONLY PARTS AND REPAIR USE ONLY PARTS AND REPAIR instructions listed on this PROCEDURES APPROVED BY PROCEDURES APPROVED BY STANLEY AND DESCRIBED IN THE STANLEY AND DESCRIBED IN THE tag before removal. We OPERATION MANUAL. OPERATION MANUAL. suggest you retain this tag... -
Page 8: Hydraulic Hose Requirements
HOSE SAFETY TAGS To help ensure your safety, the following DANGER tags are attached to all hose purchased from Stanley Hydrau- lic Tools. DO NOT REMOVE THESE TAGS. -
Page 9: Htma Requirements
HTMA REQUIREMENTS TOOL CATEGORY HYDRAULIC SYSTEM REQUIREMENTS TYPE 1 TYPE II TYPE III TYPE RR FLOW RATE 4-6 gpm 7-9 gpm 11-13 gpm 9-10.5 gpm (15-23 lpm) (26-34 lpm) (42-49 lpm) (34-40 lpm) TOOL OPERATING PRESSURE 2000 psi 2000 psi 2000 psi 2000 psi (at the power supply outlet) -
Page 10: Operation
OPERATION 3. Observe fl ow indicators stamped on hose couplers to PREPARATION FOR INITIAL USE be sure that oil will fl ow in the proper direction. The female coupler is the inlet coupler. Each unit as shipped has no special unpacking or assem- bly requirements prior to usage. - Page 11 For advice on specifi c wood cutting problems or techniques for your area, consult your local Stanley representative or your county agent. They can often provide information that will make your work safer and more productive.
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Page 12: Equipment Protection & Care
fl ow. This can cause damage to internal seals. • Always replace hoses, couplings and other parts with replacement parts recommended by Stanley Hydraulic Tools. Supply hoses must have a minimum working pressure rating of 2500 psi/172 bar. -
Page 13: Troubleshooting
TROUBLESHOOTING If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem. When diagnosing faults in operation of the tool, always make sure the hydraulic power source is supplying the correct hydraulic fl ow and pressure as listed in the table. Use a fl owmeter know to be accurate. check the fl ow with the hydraulic fl... -
Page 14: Specifications
SPECIFICATIONS Capacity ............................... 2-1/4 inch/5.7 cm cut Pressure Range ........................... 1000-2000 psi/70-140 bar Maximum Back Pressure ..........................250 psi/17 bar Flow Range .............................3-9 gpm/ 11-34 lpm Porting ............................. 3/8 NPT Female Pipe Thread Connect Size and Type ................3/8 in. NPT x 3/8 in. NPT Male Pipe Hex Nipple Hose Whips .................................. -
Page 15: Service
SERVICE INTERNAL TUBE ASSEMBLY PRIOR TO DISASSEMBLY 7. Using 1/2 inch open end wrenches on the internal tube Thoroughly clean the exterior of the tool. (20) wrench fl ats and on the piston rod (21) wrench fl ats, unscrew the internal tube from the piston rod by turning it Obtain a seal kit so all seals exposed may be replaced. -
Page 16: Parts Inspection
SERVICE 15. Push the valve spool out of the valve handle. VALVE SPOOL & VALVE HANDLE 16. Remove the spool screw (6) from the valve spool by 7. Inspect the valve spool and bore of the valve handle for unscrewing it. excessive wear or deep scratches which might cause pre- mature seal failure. -
Page 17: Tube Coupling
SERVICE 9. For o.c. systems, place the spring (18) over the threaded 20. Install the hook (34) and secure with two capscrews surface of the piston (15) and then screw the piston into the (31) and washers (30). piston nut (19) using Loctite™ 242. Screw the complete as- sembly onto the piston rod (21) using Loctite™... -
Page 18: Testing For Operation & Performance
SERVICE A correctly adjusted pruner will put the knife blade in the full open position when hydraulic power is supplied with the trigger in the off position. There should be no contact between the hook and link bar when the knife blade is in this position. -
Page 19: Parts Illustration
PARTS ILLUSTRATION... -
Page 20: Parts List
PARTS LIST Item Item Part No. Description Part No. Description ----- Dielectric Test Sticker 28415 Cylinder 12412 Warning Sticker 28416 Cylinder Oil Tube 03783 GPM Sticker 00252 O-Ring 00175 O-Ring 28502 Name Tag 25910 Notice Sticker 01809 Spool 01812 Spool Screw 51183 Trigger 05268... -
Page 21: Warranty
fi rst retail purchaser, or for a period of 2 years from the shipping date from Stanley, whichever period expires fi rst, to be free of defects in material and/or workmanship at the time of delivery, and will, at its option, repair or replace any tool or part of a tool, or new part, which is found upon examination by a Stanley authorized service outlet or by Stanley’s factory in Milwaukie, Oregon to be DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP. - Page 22 Stanley Hydraulic Tools 3810 SE Naef Road Milwaukie, Oregon 503-659-5660 / Fax 503-652-1780 www.stanley-hydraulic-tools.com...
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