Manitowoc MLC80A-1 User Manual

Manitowoc Published 10-09-2020, Control # 259-06 5-37
MLC80A-1/MLC90A-1/MLC100A-1/MLC100-1 SERVICE/MAINTENANCE MANUAL HOISTS
5
• Measure the nylon sheaves in the gantry and the
equalizer for excessive tread wear (see Figure 5-27
). To
check for uneven wear, measure at three places.
Wear must not exceed the limit given. Replace worn or
damaged sheaves.
- Depending on the type of wire rope used, it is
normal for nylon sheaves to show the wire rope
print. Do not remachine the nylon sheaves.
- Nylon sheaves cannot be accurately inspected
using conventional methods such as sheave
gauges.
- Due to the characteristics of nylon sheaves, the
nylon material will actually move to better
support the wire rope as the sheave wears
normally.
- Nylon sheave properties will be degraded in
temperatures above 60°C (140°F).
B = tread diameter, new sheave
E = tread diameter, used sheave
B minus E = total wear
If total wear is 5 mm (3/16 in) or more, sheave should be replaced.
If a tread print exists in root of sheave groove, measure to maximum tread diameter.
FIGURE 5-27
PLASTIC SHEAVE DATA
Sheave
Part No.
A
Outside
Diameter
B
Tread
Diameter
C
Width
D
Rope
Diameter
E
Worn
Diameter
mm (inch) mm (inch) mm (inch) mm (inch) mm (inch)
80118232 580,00
(22.83)
510,00
(20.08)
75,00 (2.95) 22,00 (0.87) 575,00
(22.64)
FOR REFERENCE
ONLY

Manitowoc MLC80A-1 Specifications

General

Brand	Manitowoc
Model	MLC80A-1
Category	Construction Equipment
Language	English