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Maintenance
Up/Down System
4
4-4
15doc080213
Maintenance
4.7
Up/Down System
1.
Remove any sawdust buildup from the up/down screw bellows, the up/down screw nut,
the upper
and lower limit switches and the lower bearing housing.
See Figure 4-3.
2.
Lubricate the up/down acme screw with a rolling bearing lubricant (e.g.
Ł
T4S or Shell Extreme
Pressure Grease) every six months. Apply the lubricant to the grease fitting in the nut housing.
Lubrication may be required sooner if environmental conditions require it. If the lubricant appears
to have dispersed or is dry or crusted, reduce the maintaince interval.
The up/down screw bellows should completely cover the screw. If either of the bellows is
damaged, replace it immediately. Before installing the new bellows, clean the up/down screw and
nut thoroughly with extraction naphtha. The acme screw nut (Part No. 094243) should be replaced
if the end play is larger than 1.25 mm.
FIG. 4-4
150126B
Upper Limit
Switch
Up/Down
Screw
Bellows
Lower Limit
Switch
Lower Bearing
Housing
Содержание LT15M2 D10
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