Manitowoc Published 05-26-17, Control # 238-02 2-31
MLC165-1 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
HYDRAULIC TESTS AND CALIBRATIONS
Experienced technicians, trained in the operation of this
crane and its hydraulic system, shall perform the procedures
described this section. The technicians shall read,
understand, and comply with the instructions in this section
and to the display screen instructions in the MLC165-1 Main
Display Operation manual.
Contact your Manitowoc dealer for an explanation of any
procedure not fully understood.
The calibration, and test procedures described in this section
were made to the crane before it was shipped from the
factory. These procedures must be performed by field
personnel only when parts are replaced or when instructed
by a Manitowoc dealer.
Travel Speed Test
NOTE Perform this check in an area where the crane can
be traveled without interference.
An assistant is needed to count the rotations of the
crawler rollers.
1. Apply a timing mark (1, Figure 2-28
) mark to the outside
of one front crawler roller (2) and to the same location on
the inside of the other front crawler roller so the assistant
can see both timing marks.
2. Start the engine and run it at high idle.
3. Using the travel speed selection switch, select high
speed travel.
4. Travel the crane forward at full speed for one minute
while the assistant walks along side the crane and
counts the timing mark revolutions.
5. Verify the counted revolutions are within the limits
specified in Table 2-1 on page 2-15
If the counted
rotations are not within the specified range, contact the
Manitowoc Crane Care Lattice Team.
6. Travel the crane in reverse at full speed for one minute
while the assistant walks along side the crane and
counts the timing mark revolutions.
7. Verify the counted revolutions are within the limits
specified in Table 2-1 on page 2-15
If the counted
rotations are not within the specified range, contact the
Manitowoc Crane Care Lattice Team.
Figure 2-28. Crawler Timing Marks
Item Description
1Timing Marks
2 Front Crawler Roller
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