500E2 OPERATOR MANUAL LUBRICATION PROCEDURE AND CHARTS
National Crane Published 07-26-2019 Control # 111-06 5-9
HYDRAULIC OIL RESERVOIR LEVEL
The hydraulic oil reservoir has a sight gauge located on the
side of the reservoir. This sight gauge has a decal beside it
that indicates a "full" level and an "low oil" level. The oil
required to bring it from the "low" line to the "full" line is 5
gallons. Do not fill the reservoir above the "full" line. The oil
level should be checked with the crane parked on a level
surface in the transport condition (all cylinders retracted and
boom stowed) and the oil cold.
WIRE ROPE LUBRICATION
A wire rope cannot be lubricated sufficiently during
manufacture to last it’s entire life. Therefore, new lubricant
must be added throughout the life of a rope to replace factory
lubricant which is used or lost. It is important that lubricant
applied as part of a maintenance program shall be
compatible with the original lubricant, and to this end, the
rope manufacturer should be consulted. Lubricant applied
shall be of the type which does not hinder visual inspection.
Those sections of rope which are located over sheaves or
otherwise hidden during inspection and maintenance
procedures require special attention when lubricating rope.
The object of rope lubrication is to reduce internal friction and
to prevent corrosion.
During fabrication, ropes receive lubrication; the kind and
amount depends on the rope’s size, type, and anticipated
use. This in-process treatment will provide the finished rope
with ample protection for a reasonable time if it is stored
under proper conditions. But, when the rope is put into
service, the initial lubrication may be less than needed for the
full useful life of the rope. Because of this possibility, periodic
applications of a suitable rope lubricant are necessary.
The following are important characteristics of a good wire
rope lubricant:
1. It should be free from acids and alkalis.
2. It should have sufficient adhesive strength to remain on
the ropes.
Brake Vent/Fill Plug
Brake Drain Plug
FIGURE 5-3
Sight Gauge
Hydraulic Oil Level
To Next Page
Loading...
Need help?
General
