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BG6A & BG6B
HYDRAULIC PLANETARY HOIST
INSTALLATION, MAINTENANCE AND
SERVICE MANUAL
LIT2286 R2
5/2010
Printed in U.S.A.
Copyright 2010 PACCAR Winch Division.
All rights reserved.
PACR
WINCH DIVISION
P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013
PHONE (918) 251-8511 FAX (918) 259-1575
www.paccarwinch.com
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Related Manuals for Paccar Winch BRADEN Gearmatic BG6A
Summary of Contents for Paccar Winch BRADEN Gearmatic BG6A
- Page 1 HYDRAULIC PLANETARY HOIST INSTALLATION, MAINTENANCE AND SERVICE MANUAL PACR WINCH DIVISION P.O. BOX 547 BROKEN ARROW, OK U.S.A. 74013 LIT2286 R2 PHONE (918) 251-8511 FAX (918) 259-1575 5/2010 Copyright 2010 PACCAR Winch Division. www.paccarwinch.com Printed in U.S.A. All rights reserved.
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Page 3: Table Of Contents
TABLE OF CONTENTS PAGE FOREWORD ........... .2 PARTS AND SERVICE . -
Page 4: Foreword
FOREWORD Read and understand this entire publication before operating or servicing your BRADEN hoist. Retain this manu- al 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 Model BG6 series hoist. -
Page 5: General Safety Recommendations
GENERAL SAFETY 9. An equipment warm-up procedure is recommended RECOMMENDATIONS for all start-ups and is essential at ambient tempera- tures below +40ºF (4.4ºC). Refer to "Warm-up Procedure" listed in the "Preventive Maintenance" Safety for operators and ground personnel is of prime section of this manual. -
Page 6: Dimensional Data
DIMENSIONAL DATA - 01 DRUM 013 MOTOR MOTOR DRAIN LOWERING PORT 19.76 12.50 SAE -4 ORB SAE -10 ORB 7.28 4.12 5.27 6.25 1.75 -20 THD) (7/8-14 THD) 2.15 HOIST HOIST PORT SAE -10 ORB (7/8-14 THD) 7.50 11.57 1.38 11.13 6.00 4X 0.53... - Page 7 DIMENSIONAL DATA - 02 DRUM 013 MOTOR 15.91 20.06 4.12 MOTOR DRAIN 7.28 5.37 7.95 SAE -4 ORB 2.20 1.75 -20 THD) HOIST LOWERING PORT HOIST PORT SAE -10 ORB SAE -10 ORB -14 THD) (7/8 -14 THD) 7.50 15.28 1.38 14.56 8.00...
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Page 8: Theory Of Operation
THEORY OF OPERATION NOTE: The special order 07 (7:1) gear ratio has only one planetary gear set Dual Brake System – Description DESCRIPTION OF HOIST The dual brake system consists of a dynamic brake sys- The hoist has four basic component parts: tem and a static brake system. - Page 9 The friction brake is a load holding brake only and has When the control valve is shifted to neutral, the pressure nothing to do with dynamic braking or rate of descent of a will drop and the brake valve will close, stopping the load. load.
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Page 10: Hoist And Wire Rope Installation
HOIST AND WIRE ROPE In general terms: INSTALLATION For continuous operation at ambient temperatures between 50 F (10 C) and 110 F (43 C), use SAE 20W; for continuous operation between 10 F (-12 C) and 90 C), use 10W; for applications colder than 10 F (- 1. -
Page 11: Preventative Maintenance
PREVENTIVE MAINTENANCE A regular program of preventive maintenance for your 3. Vent Plug planetary hoist is strongly recommended to minimize the The vent plug is located in the motor adapter. It is very need for emergency servicing and promote safe, reliable important to keep this vent clean and unobstructed. -
Page 12: Recommended Gear Oil
8. Recommended Planetary Gear Oil Field experience, supported by extensive engineering tests, indicates the use of the proper planetary gear oil is essential to reliable and safe operation of the brake and obtaining long gear train life. Failure to use the proper type and viscosity of plane- tary gear oil may contribute to intermittent brake slip- For simplicity, we have listed readily available products in page which could result in property damage, severe... -
Page 13: Trouble Shooting
TROUBLE SHOOTING TROUBLE REMEDY PROBABLE CAUSE 1. System relief valve may be set too Install a pressure gauge in the haul-in port and apply a low. stall pull on the hoist. If pressure is low, increase relief valve setting until recommended pressure is obtained. Hoist will not pull maxi- NOTE: If pressure does not increase in proportion to... - Page 14 TROUBLE SHOOTING TROUBLE PROBABLE CAUSE REMEDY Perform rigging and sheave service as recommended by 9. Rigging and sheaves not operating manufacturer. efficiently. Same as remedy for A-2. 1. Same as A-2. Same as remedy for A-4. 2. Same as A-4. Same as remedy for A-5 &...
- Page 15 TROUBLE SHOOTING TROUBLE REMEDY PROBABLE CAUSE 1. The friction brake may not be releas- Disassemble and inspect the brake cylinder seal. ing as a result of a defective brake cylinder seal. The hoist will NOTE: If the brake cylinder seal is not lower the defective you will usually notice oil load or not...
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Page 16: Hoist Exploded View Drawing
Braden/ Gearmatic BG6A & BG6B Components ITEM DESCRIPTION ITEM DESCRIPTION BASE 16166-8 PLUG CABLE DRUM DRIVE SCREW CABLE DRUM CLOSURE LOCKWASHER PRIMARY SUN GEAR CAPSCREW THRUST RACE CABLE WEDGE THRUST RACE INPUT SHAFT BEARING SUPPORT BRAKE CLUTCH ASY. OIL SEAL BRAKE CYLINDER/BG6B BALL BEARING MOTOR ADAPTER... - Page 17 REFER TO MATERIAL LIST FOR PART NO. LISTINGS “B” Model Brake Cylinder *= QUANTITY OF PART DISPLAYED MAY NOT BE ACCURATE FOR YOUR APPLICATION. CONSULT RESPECTIVE MATERIAL LIST FOR ACCURATE QUANTITY’S ITEM DESCRIPTION ITEM DESCRIPTION 1941006 SNAP RING BRAKE PLATE SPACER SNAP RING FRICTION DISC OUTPUT PLANET CARRIER ASY.
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Page 18: Hoist Service
HOIST SERVICE 2. Stand the hoist on the bearing support plate. Remove the brake release tube assembly (59) between the brake valve block and the brake cylinder end plate. FOREWORD TO HOIST SERVICE Remove the capscrews and lockwashers which secure the motor to the motor adapter, and lift the Before any part is removed from the hoist, all service motor out of the motor adapter. - Page 19 DRUM ASSEMBLY SERVICE 1. Remove the bearing and seal from support end of the drum. Check the ring gear teeth (machined into the inside surface of the drum) for nicks, spalling or excessive wear. Replace the drum if wear is greater than 0.015 in.
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Page 20: Brake Cylinder Service
MOTOR SUPPORT-BRAKE CYLINDER SERVICE NOTE: Starting mid-year 1996, Braden changed the steel brake separator discs from a splined tooth design to a lobed design. This required a change to the motor sup- port and brake cylinder and the addition of a spring spac- er. - Page 21 ASSEMBLY 3. Place friction brake disc on flat surface and check for 1. Begin assembly by placing motor support on work- distortion with a straight edge. Friction material should bench with motor mounting surface down. Install new appear even across entire surface with groove pattern O-ring and back-up ring as shown.
- Page 22 6. Lubricate the brake piston seal and motor support sealing surface with petroleum jelly or hydraulic oil. 3. Insert first, a steel brake disc against the spacer fol- Install new piston seal to motor support, seal lip down. lowed by a friction brake disc then alternate steel and friction discs until seven (7) friction and eight (8) steel discs have been installed.
- Page 23 8. Apply petroleum jelly to the entire sealing surface of the brake cylinder and to the piston seal. Install the brake cylinder over the motor support being careful to BRAKE CYLINDER PRESSURE TEST avoid damaging the piston seal or motor support O- ring.
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Page 24: Brake Clutch Service
BRAKE CLUTCH SERVICE DISASSEMBLY 1. Remove the snap ring and sprag bushing retainer from one end only. 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 spots;... - Page 25 6. Turn the assembly over with the snap ring down. 2. Turn the assembly over and install the sprag clutch in Install the second retainer and snap ring. Make cer- the bore of the outer race. tain the snap ring is seated in the groove properly. 3.
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Page 26: Planet Carrier Service
PLANET CARRIER SERVICE OUTPUT PLANET CARRIER DISASSEMBLY 1. Remove the planet gears by driving the roll pins into the center of the planet shafts. 3. Now you can remove the planet shafts, bearings, spacer, thrust washers and gears. Thoroughly clean all parts and inspect for damage and wear. - Page 27 2. Insert two (2) bearings and a bearing spacer into a gear with the spacer between the bearings. Place a thrust washer on each side of the gear and position in 4. Note that the roll pin is slightly recessed in the carrier a carrier opening.
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Page 28: Hoist Assembly
HOIST ASSEMBLY 3. Center the drum in the opening of the base. Lubricate the bearing support with petroleum jelly or gear oil and install in base and drum. 1. Place hoist base on side with bearing support end up. CAUTION 2. - Page 29 O-RING GROOVE 9. Install a new bearing in the drum closure as required. Use sealant on the outside surface of the oil seal. Install with spring side of the seal toward bearing, 6. Install the output planet carrier into the drum while meshing the planet gears with the ring gear and the using a flat plate to avoid distortion.
- Page 30 13. If the brake discs are misaligned, preventing the installation of the clutch, then with a hand pump, apply 750-1000 psi to the brake release port. The brake discs will move freely with the brake released 12. Install the brake clutch assembly. NOTE: The snap ring installed in the bore of the inner race is not centered in the splines.
- Page 31 19. Install a hand pump with an accurate 0-2,000 psi (0- 13,800 kPa) gauge and shut-off valve to the brake release port. Apply 1,000 psi (6,900 kPa) to the brake and close the shut-off valve. Let the brake stand for five (5) minutes.
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Page 32: Reversing Direction Of Drum Rotation
REVERSING DIRECTION OF DRUM ROTATION Motor Case Drain Motor Case Drain Lowering Lowering Brake Brake Motor Motor Valve Port Valve Port Hoisting Hoisting Port Port Brake Release Brake Release Circuit Circuit “B” “A” M = Manifold Block NOTE: Only BG6A and BG6B hoists equipped with gear motors and Braden cast brake valves are capable of being configured for opposite, or underwound drum rotation. - Page 33 7. Before installing the brake clutch, be sure the inner race turns free in the opposite direction the drum will turn to haul-in wire rope. An easy way to check the rotation is to hold the outer race in one hand and rotate the inner race from the motor side.
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Page 34: Fastener Torque Chart
RECOMMEND FASTENER TORQUE The general purpose torque shown in the chart applies to SAE Grade 5 bolts, studs and standard steel full, thick and high nuts. Higher or lower torques for special applications will be specified such as the use of spanner nuts, nuts on shaft ends, jam nuts and where distortion of parts or gaskets is critical. -
Page 35: Metric Conversion Table
METRIC CONVERSION TABLE MULTIPLY: TO GET: MULTIPLY: TO GET: 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...