Dover TWG TULSA WINCH 1200W Manuel d'entretien - Page 8
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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
and counterbalance valve assembly from the hoist by removing the capscrews
(Item 52)
washers
.
valve disassembly.
4. Remove the brake subassembly from the hoist by removing eight capscrews
the brake housing to the side plate
extra tapped holes and tighten them evenly until the brake housing comes loose from the side
See Servicing The Brake section on page 11 for brake repair
plate.
5. Remove the side plate
6. Lift the bearing carrier
signs of pitting or spalling and if necessary, replace the bearing and seal
7. Remove the thrust washer
(Item 36)
. Inspect for damage and replace if needed.
8. Remove the input planet gearset
See Servicing The Planetary Set section on page 13 for disassembly and
repair as needed.
repair.
9. Remove the thrust washer
replace if needed.
10. Remove the output planet gearset
and repair as needed.
repair.
(Item 5)
11. Remove the drum
the gear teeth for excessive wear and replace if necessary. Inspect the bearing
signs of spalling or pitting and, if necessary, replace the bearing and seal
12. Inspect the retaining ring
is not bent, and replace if necessary.
(Item 32)
13. Inspect the shaft
(Item 50)
by removing six capscrews
DISASSEMBLY
See Servicing The Motor section on page 10 for motor and counterbalance
(Item 1).
(Item 1)
by removing ten (in some cases, eight) capscrews
(Item 26)
out of the drum
(Item 6)
and input sun gear
(Item 36)
from the drum. Inspect the gearset for wear and
(Item 6)
and output sun gear
(Item 4)
from the cable drum. Inspect the gearset for wear
See Servicing The Planetary Set section on page 13 for disassembly and
by lifting straight up and off of the output shaft
(Item 3)
on the output shaft to ensure that it is still in the groove and
for wear or damage and, if necessary, remove it from the side plate
(Item 9).
8
(Item 21)
Reinstall two of these capscrews into the two
.
(Item 5)
.
Inspect the bearing
(Item 7-4)
(Item 8)
from the input planet gearset
(Item 16)
. Inspect for damage and
(Item 7-4)
. Remove the motor
(Item 51)
and
(Item 9)
holding
(Item 2)
.
(Item 28)
for
.
(Item 32).
Inspect
(Item 28)
for
.