TABLE OF CONTENTS SAFETY NOTES .......................... 2 INTRODUCTION AND THEORY OF OPERATION ................ 3 HYDRAULIC SCHEMATIC......................4 MAINTENANCE AND SERVICE ....................5 WIRE ROPE ..........................7 DISASSEMBLY ........................... 8 ASSEMBLY ..........................9 SERVICING THE MOTOR ......................10 SERVICING THE BRAKE......................11 SERVICING THE PLANETARY SETS ..................
SAFETY NOTES FAILURE TO HEED THE FOLLOWING WARNINGS MAY RESULT IN SERIOUS INJURY OR DEATH! • Operators must be trained in the proper, safe operation of the hoist. • Hoists are not to be used to lift, raise, or move people. If your task involves lifting or moving people, you must use the proper equipment, not this hoist.
INTRODUCTION AND THEORY OF OPERATION The planetary hoist is designed to utilize a geroler, gear, or piston motor, driving through a multiple- disc oil brake, through a pair of planetary gearsets to the cable drum. The multiple-disc oil brake is spring applied and hydraulically released through a port in the brake housing.
MAINTENANCE AND SERVICE For safe and consistent operation of TULSA WINCH hoists, swing drives, and winches, a regular program of preventive maintenance is strongly recommended. Regular oil changes with the correct oil for the ambient temperature conditions and an annual inspection of the wear components will help ensure a long life for your planetary geared products.
Page 6
RECOMMENDED OIL SAE 90W AGMA 4 EP MOBIL SHC 75W90 SAE 20W20 MOBIL 1 SYNTHETIC ATF MOBIL SHC 524 All oils must meet MIL-PRF2105E. Substitution from a reputable manufacturer is allowed as long as type and grade are maintained. OIL CAPACITY GEARBOX 1.00 QT BRAKE...
OIL CHANGE (Item 33) Gearbox oil is drained by first removing the drain plug by rotating the drum so that the (Item 50) (See Fig 1) plug is visible through the lower hole in the side plate . Screw in a piece of 1" pipe to allow the oil to drain, and then with a hex wrench remove the drain plug located inside of (See Fig.
DISASSEMBLY 1. Drain the oil from the gearbox and brake sections using the instructions on page 7. 2. Stand the hoist on its end with the motor pointing up. 3. Disconnect the tubing or hose connected to the brake housing (Item 21) .
ASSEMBLY 1. Thoroughly clean all parts. Replace those that show wear or damage. 2. Inspect the drum (Item 5) for structural integrity and the gear teeth for excessive wear, then replace if necessary. 3. Attach the output shaft (Item 32) to the side plate (Item 50) with six capscrews (Item 9) , (Item 30) (see making sure the vent...
15. Install a new o-ring (Item 7-2) on the face of the motor and re-install the motor/counterbalance (Item 51) (Item 52) valve assembly. Install the capscrews and washers and torque them to (see Torque Specifications Chart on page 15 of this manual) specification 16.
SERVICING THE BRAKE (Item 11) (Item 20) 1. Evenly remove the four capscrews holding the brake cover in place. Spring pressure will raise the cover as the capscrews are loosened. Remove the cover from the brake housing. (Item 24) 2. Remove the springs from the piston and check the free height.
Page 12
(Items 7-1, 7-6, 7-7, & 7-8) 14. Coat the new o-rings and backup rings with light oil and install onto (Item 10) See Fig. 5 for proper o-ring/backup ring installation the piston (Item 10) (Item 21) 15. Carefully install the piston into the brake housing and gently tap it down until it is seated.
SERVICING THE PLANETARY SETS 1. Remove the retaining rings from the planet pins. 2. Remove the pins from the carrier by carefully tapping them out. 3. Remove the planet gears, washers and bearings from the carrier. 4. Inspect the pins, bearings, and gear bores for evidence of wear and replace if necessary. 5.
TROUBLESHOOTING Hoist won’t hold load Possible Solutions: 1. There is excessive back pressure in the hydraulic system. Check the system for line restrictions and reduce the back pressure. 2. The brake discs are worn. Replace the brake discs. Friction discs should measure no less than 0.055 inches thick and the stator plates should measure at least 0.068 inches thick.
BILL OF MATERIAL NOTES DESCRIPTION 42394 SIDE PLATE 4252 SIDE PLATE BRAKE SIDE 43170 SIDE PLATE (SEE PICTORAL FOR IDENTIFICATION) 42518 SIDE PLATE 42484 SIDE PLATE 29792 CAPSCREW ALTERNATE QTY FOR 4252/4508 SIDEPLATES 29792 CAPSCREW 29973 RETAINING RING FOR 1221W, 1229W, 1241W 4384 OUTPUT GEARSET 4a-1...
Page 17
NOTES DESCRIPTION SAE 2-BOLT “A” MOTOR MOUNT 41746 BRAKE COVER SAE 4-BOLT “B” MOTOR MOUNT 42015 BRAKE COVER SAE 4-BOLT “C” MOTOR MOUNT 43419 BRAKE COVER SAE 2-BOLT “B” MOTOR MOUNT 43172 BRAKE COVER 43423 BRAKE HOUSING 42230 BRAKE SPRING 41752 BEARING CARRIER 34550...
Page 18
NOTES DESCRIPTION OUTPUT SHAFT SIDE 44364 SIDE PLATE (SEE PICTORAL FOR IDENTIFICATION) 13529 CAPSCREW 41000 LOCKWASHER 40557 CAPSCREW 4179 CABLE PACKER ASSEMBLY 56-1 42515 BEARING 56-2 42417 PACKER ARM 56-3 42418 ROLLER 56-4 42421 ROLLER 56-5 42517 CAPSCREW 56-6 42516 BEARING 56-7 42425...
Need help?
Do you have a question about the TWG TULSA WINCH 1200W and is the answer not in the manual?
Questions and answers