
Reference
Only
18000 SERIVCE/MAINTENANCE MANUAL
HYDRAULIC SYSTEM
Manitowoc
Published 12-05-17, Control # 035-23
2-3
2
4.
Clean exterior of system often. Do not let dirt
accumulate on or around any part of system.
5.
Check for external leaks. Leaks are not only unsafe, but
they also attract dirt and in some cases allow air and
water to enter system. Do not return leaked oil back to
hydraulic tank.
Do not to use your hands to check for leaks.
•
Look for oil leaking from fittings and from between
parts that are bolted together. Tighten loose fittings
and attaching bolts to proper torque. Do not over
tighten.
•
If leakage persists at these points, replace seals or
gaskets.
•
Look for oil leaking from pump and motor shaft
ends, from valve spool ends, and from cylinder shaft
ends. Replace seal if leakage is found at any of
these points.
•
Replace tubes that are cracked, kinked, or bent.
•
Replace hoses that are cracked, split, or abraded.
•
Listen to pumps and motors for unusual noises. A
high pitched whine or scream can indicate that air is
being drawn in.
An air leak can be pinpointed by flooding inlet fitting,
hose, or tube with oil. If there is an air leak, the oil will
cause a noticeable reduction in noise. Correct cause for
any air leak, or pump/motor will be ruined.
NOTE:
A high pitched whine or scream from the pump can
also indicate cavitation (pump being starved of oil).
This condition is caused by the following problems:
•
Collapsed or plugged suction line
•
Wrong oil (viscosity too high)
6.
Look for signs of overheating: peeled parts, burned and
scorched oil odor, and darkening and thickening of oil.
Maximum temperature of oil in tank must not exceed
180°F (82°C).
7.
Have hydraulic oil analyzed at regular intervals to
determine condition of oil and extent of system
contamination.
By having the oil analyzed on a regular basis, an oil
change interval meeting your operating conditions can
be established.
NOTE:
Contact your oil supplier for the availability of oil
analysis services and the steps that should be
taken to obtain these services.
Hydraulic Tank Heater
On hydraulic tanks with one tank heater, replacement
hydraulic tank heaters must be set prior to installation.
1.
Remove top cover from heater by unscrewing cover.
2.
Turn adjusting knob fully clockwise. This position is
100°F (38°C).
3.
Re-install cover.
Summary of Contents for 18000
Page 1: ...R e f e r e n c e O n l y Service Maintenance Manual Manitowoc 18000 ...
Page 2: ...R e f e r e n c e O n l y ...
Page 4: ...R e f e r e n c e O n l y THE ORIGINAL LANGUAGE OF THIS PUBLICATION IS ENGLISH ...
Page 210: ...R e f e r e n c e O n l y NOTES SKETCHES AND PHOTOGRAPHS ...
Page 315: ...R e f e r e n c e O n l y ...
Page 316: ...R e f e r e n c e O n l y ...