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Related Manuals for Paccar Winch BRADEN H20R
Summary of Contents for Paccar Winch BRADEN H20R
- Page 1 BRADEN H20R Recovery Winch INSTALLATION, MAINTENANCE AND SERVICE MANUAL PACR WINCH DIVISION P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013 LIT2223 R1 PHONE (918) 251-8511 FAX (918) 259-1575 3/2005 www.paccarwinch.com Printed in U.S.A.
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Page 2: Table Of Contents
TABLE OF CONTENTS FOREWORD ........... .2 GENERAL SAFETY RECOMMENDATIONS . -
Page 3: Foreword
FOREWORD Read this entire publication and retain it for future reference. The minimum service intervals specified are for operating hours of the prime mover. The following service instructions have been prepared to provide assembly, disassembly and maintenance infor- mation for the Braden Model H20R. It is suggested that before doing any work on this unit, all assembly and dis- assembly instructions should be read and understood. -
Page 4: General Safety Recommendations
GENERAL SAFETY RECOMMENDATIONS Safety and informational callouts used in this manual include: CAUTION WARNING – This emblem is used to warn against CAUTION – This emblem is used to warn against hazards and unsafe practice which COULD result in potential or unsafe practices which COULD result in severe personal injury or death if proper procedures personal injury and product or property damage if are not followed. -
Page 5: Theory Of Operation
THEORY OF OPERATION DESCRIPTION OF WINCH The static brake system has three operating compo- nents: The winch has four basic component parts: 1. Spring Applied, Multiple Friction Disc Static Brake 1. Winch base 2. Brake Clutch Assembly 2. Hydraulic motor and brake valve 3. - Page 6 The static brake is released by the brake valve pilot Static Friction Brake Applied Figure 5 pressure at a pressure lower than that required to open the pilot operated spool valve. This sequence assures Sprag that dynamic braking takes place in the brake valve and Cams that little, if any, heat is absorbed by the friction brake.
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Page 7: Winch Installation
WINCH INSTALLATION First sheave or load 17° 17° 5. The winch must be mounted perpendicular to an imaginary line from the center of the winch to the first sheave to ensure even spooling. Make certain the fleet angle is between ½ and 1 ½ degrees. WINCH ASSEMBLY W/BRAKE VALVE &... -
Page 8: Specifications
SPECIFICATIONS Unit weight without wire rope, approximate ........500 lb. (227 kg) Gear Ratio . -
Page 9: Wire Rope Installation
WIRE ROPE INSTALLATION Prepare the end of the wire rope as recommended by the wire rope manufacturer. Insert the free end of the wire rope through the opening in the drum flange. Push the wire rope into the anchor pocket until the end of the The set screw wire rope anchor system is not capa- wire rope is even with the outer edge of the pocket. -
Page 10: Preventive Maintenance
PREVENTIVE MAINTENANCE A regular program of preventive maintenance for your Inspections procedures for hoists are divided into five planetary hoist is strongly recommended to minimize general categories based upon the hoist usage or duty the need for emergency servicing and promote safe, cycle, which in turn determines different, appropriate reliable hoist operation. - Page 11 Pre-Use or Daily Inspection: Must include but is not limited to the following inspec- tions that will be performed prior to placing the hoist into service and then as necessary during extended opera- Failure to properly warm up the hoist, particularly tion.
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Page 12: Recommended Planetary Hoist Gear Oil
Oil change instructions: 1. Remove wire rope from drum until fill/drain plug is visible on cable drum barrel. Rotate drum barrel to place the plug at the bottom, 6 o'clock position. Remove the plug and capture the gear oil in a suit- Oil Fill/Drain Plug able container. -
Page 13: Troubleshooting
TROUBLESHOOTING If a hoist ever exhibits any sign of erratic operation, or load control difficulties (load creeping down or chatter- ing) appropriate troubleshooting tests and repairs must be performed immediately. Continued operation of a hoist with a defect may result in property damage, injury or death. REMEDY TROUBLE PROBABLE CAUSE... - Page 14 PROBABLE CAUSE REMEDY TROUBLE The brake will not hold a 1. Excessive system back pressure acting on System back-pressure must not exceed 100 load with the control lever the brake release port. psi (690 kPa). Inspect hydraulic system for in neutral. restriction in the circuit from the motor to the reservoir.
- Page 15 PROBABLE CAUSE REMEDY TROUBLE The winch runs hot. 1. Same as D1. Same as remedies for Trouble D1. 2. Be certain that the hydraulic system tem- ° °C) perature is not more than 180 F (82 Excessive hydraulic oil temperatures may be caused by: Thoroughly clean exterior and flush interior.
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Page 16: Disassembly Of Winch
DISASSEMBLY OF WINCH 1. Remove the wire rope from the cable drum and 6. Place an alignment mark on the brake cylinder and rotate the drum until the fill/drain plug is at the bot- the hoist end-bracket to ensure the correct position tom, six o'clock position. - Page 17 10. Remove the output sun gear and thrust washer from 12. Lift the cable drum off of the drum bearing support the output planet carrier. and end-bracket. Remove the seal and drum bear- ing as required. Thoroughly clean and inspect the ring gear, machined into the inside surface of the drum, for nicks, spalling or excessive wear.
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Page 18: Planet Carrier Service
PLANET CARRIER SERVICE OUTPUT PLANET CARRIER DISASSEMBLY 3. Now you can remove the planet shafts, bearings, spacer, thrust washers and gears. Thoroughly clean all parts and inspect for damage and wear. The bearing rollers should not exhibit any irregularities. If 1. - Page 19 2. Insert two (2) bearings and a bearing spacer into a 4. Note that the roll pin is slightly recessed in the car- gear with the spacer between the bearings. Place a rier when properly installed. With a center punch, thrust washer on each side of the gear and position stake the carrier next to the pin hole as shown.
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Page 20: Brake Cylinder Service
BRAKE CYLINDER SERVICE DISASSEMBLY 1. Place an alignment mark on the motor support and 2. Check the oil seal and bearing surfaces on the out- the brake cylinder before removing the motor sup- side of the brake cylinder for damage, wear or rust. port. - Page 21 3. Place the pressure plate on top of the brake spacer 5. Measure the brake spring free-length; minimum ring. Hold the pressure plate down firmly by hand free-length is 1 3/16 in. (30.2 mm). Inspect springs and measure the clearance in three places, between for any sign of cracking or fatigue failure.
- Page 22 BRAKE CYLINDER PRESSURE TEST Always use the molded spring spacer. The brake springs must be properly positioned by the spring spacer. Failure to install the spring spacer may allow the springs to contact each other and become dam- aged. This could result in loss of load control, prop- erty damage, injury or death.
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Page 23: Brake Clutch Service
BRAKE CLUTCH SERVICE DISASSEMBLY 4. Next, slide the sprag clutch out, inspect the sprag clutch closely for abnormal wear, cracks, pitting or corrosion. Check small clips for breakage or bright 1. Remove the snap ring and sprag bushing retainer spots; the signs of excessive wear. Unless the from one end only. - Page 24 6. Turn the assembly over with the snap ring down. 2. Turn the assembly over and install the sprag clutch Install the second retainer and snap ring. Make cer- in the bore of the outer race. tain the snap ring is seated in the groove properly. 3.
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Page 25: Winch Assembly
WINCH ASSEMBLY 1. Install a new bearing in the drum if replacement is tion. Install the seal with the spring side toward the necessary. Apply non-hardening sealant to the out- bearing. Install a new o-ring in the groove on the side diameter of the new seal and press the seal outside diameter of the closure. - Page 26 Measure the distance from the motor mounting surface to the inner brake race. With all components properly installed, this distance should be 11/16 in. (17.5 mm) to 3/4 in. (19.1 mm). If this distance is less than 9/16 in. (14.3 mm), the primary spacer may be positioned as shown below and should be checked.
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Page 27: Cross-Section Drawing And Parts Key
BRADEN H20R (05559) COMPONENTS... - Page 28 BRADEN H20R (05559) PARTS KEY ITEM DESCRIPTION Sprag Clutch Assembly Brake Cylinder Assembly Primary Planet Carrier Assembly Output Planet Carrier Assembly O-Ring Hydraulic Motor Hose Assembly Counterbalance Valve Capscrew, Socket Hd (3/8 - 16 X 5 G8) Cable Guard Swivel Nut...
- Page 29 SPRAG CLUTCH ASSEMBLY ITEM QTY DESCRIPTION Outer Brake Race Inner Brake Race Sprag Bearing Thrust Bearing Retaining Ring Sprag Clutch Retaining Ring BRAKE CYLINDER ASSEMBLY NOTE: Drawing shows 6 friction and 7 steel discs. The parts list below is correct (7 friction and 8 steel). ITEM QTY DESCRIPTION Brake Cylinder...
- Page 30 PLANET CARRIER ASSEMBLIES PRIMARY ITEM QTY DESCRIPTION Primary Planet Carrier Primary Planet Gear Primary Planet Gear Shaft Roller Bearing Thrust Washer Spirol Pin Thrust Washer OUTPUT ITEM QTY DESCRIPTION Spirol Pin Output Planet Carrier Output Planet Gear Output Planet Gear Shaft Roller Bearing Bearing Spacer Thrust Washer...
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Page 31: Metric Conversion Table
METRIC CONVERSION TABLE English to Metric Metric to English LINEAR inches (in.) X 25.4 = millimeters (mm) millimeters (mm) X 0.3937 = inches (in.) feet (ft.) X 0.3048 = meters (m) meters (m) X 3.281 = feet (ft.) miles (mi.) X 1.6093 = kilometers (km) kilometers (km)