Manitowoc Grove YB5515-2, Руководство по обслуживанию и ремонту

Страница: 272 / 293

Grove
Published 1-20-2017, Control# 483-02
11-19
CD5515-2/YB5515-2 SERVICE MANUAL STRUCTURALS
11
5. Remove the side plate (41) by removing the three
capscrews (1).
6. Lift the bearing carrier (26) from the drum. If necessary
remove and replace the bearing (28) and seal (306).
7. Remove the input sun gear (8) and thrust washer (6)
from the input planet assembly (36).
8. Remove the input planet set (36) from the drum. Inspect
the planet set for wear. See
Planetary Set , page 11-23
for disassembly and repair.
9. Remove the output sun gear (16) and thrust washer (6)
from the output planet assembly (4).
10. Remove the output planet set (4) from the cable drum.
Inspect the planet set for wear. See
Planetary Set ,
page 11-23 for disassembly and repair.
11. Remove the cable drum (5) and inspect the gear teeth
for excessive wear. Remove and replace the bearing
(28) and seal (306) located in the drum.
12. Inspect retaining ring (48) to insure it is still in groove
and is not bent over.
13. If necessary remove output shaft (32) from side plate
(29) by removing six capscrews (3) holding side plate
(29) to shaft (32). Take note of vent (30) location for
reassembly.
Reassembly
NOTE: See Figure 11-16 for item number identification.
1. Thoroughly clean all parts. Replace those that show
wear or damage.
2. Inspect the cable drum (5) for structural integrity and
replace if necessary.
3. Attach the shaft (32) to the side plate (29) using the six
capscrews (3). Make sure the vent (30) is oriented
properly. Torque the capscrews to recommended
values, refer to
Fasteners and Torque Values , page 1-
12.
4. Install retaining ring (48) onto the shaft (32)
5. Lay the unit down with the rods (2) pointing up. Support
the side plate (29) with blocking (Figure 11-14) so that
the hoist is not setting on shaft (32).
6. Set cable drum (5) onto shaft (32) and seat drum on
bearing (28). Be careful not to damage seal (306).
7. Install the output planet set (4).
8. Install the output sun gear (16) into the output planet set.
9. Install the thrust washer (6) into the output planet set.
10. Install the input planet set (36) into the drum. Make sure
that it fits over the output sun gear (16).
11. Install the input sun gear (8) and thrust washer (6) into
the input planet set.
12. Install the thrust washer (6) into the input planet set.
13. Install a new O-ring (304) and if necessary bearing (28)
& seal (306) into the bearing carrier (26). Grease the
O-ring and seal then install the bearing carrier into the
drum.
14. Position the side plate (1) over cable drum on rods (43).
Secure the side plate with the three capscrews (2).
Tighten capscrews to 109 to 122 Nm (80 to 90 lb-ft).
15. Install the brake sub-assembly into the side plate (1).
Make sure that the pilot of the brake housing aligns with
the bore in the bearing and that the bolt holes for the
motor and vent are oriented properly. Install the eight
capscrews (2). Tighten the capscrews evenly to 109 to
122 Nm (80 to 90 lb-ft).
16. Install a new O-ring (305) onto the face of the motor and
reinstall the motor/counterbalance valve assembly.
Reconnect the hose (70).
17. Fill both the gearbox and the brake section with the
proper amount and type of lubricants. See
Preventative
Maintenance , page 5-1.
Hoist Service
Brake
NOTE: See Figure 11-16 for item number identification.
1. Evenly remove the four capscrews (11) holding the
brake cover (20) in place. Spring pressure will raise the
FIGURE 11-14
Reference Only