Manitowoc 16000 Service And Maintenance Manual

Reference Only
HYDRAULIC SYSTEM 16000 SERVICE/MAINTENANCE MANUAL
2-6
Published 05-09-17, Control # 014-28
Inspecting System
The damaging effects of dirt, heat, air, and water in the
hydraulic system can only be prevented by regular, thorough
inspection of the system. The frequency of inspection
depends on operating conditions and experience with the
system; however, the more often the system is inspected
and deficiencies corrected, the less likely the system will
malfunction.
A good inspection program will include the following checks:
1. Keep accurate records so future maintenance needs
can be projected.
NOTE: For detailed instructions on accessing the display
screens in the cab, see Section 3.
2. Check hydraulic oil level daily when oil is cold by looking
at hydraulic tank display on information screen in cab
(Figure 2-2
).
FULL COLD LEVEL
(approximately 60°F – 16°C)
Screen should read 87 to 90%.
FULL HOT LEVEL
(approximately 180°F – 82°C)
Screen should read 95%.
Do not fill tank to 100%. Oil will flow out of breather.
If oil level drops to 50%, a fault alarm will come on and a
fault symbol will appear on the active display.
HYDRAULIC FLUID LOW icon will appear on fault
display (Figure 2-3
). Fill tank immediately.
NOTE: Fill tank manually through plug opening (2a,
Figure 2-1
) or by pumping oil through power-fill
coupling (2b) with owner supplied portable pump.
Do not fill tank through breather port or top of
either filter. Hydraulic system could be
contaminated from unfiltered oil.
3. Only use approved hydraulic oil in system (see Section
9).
4. If equipped with a desiccant breather (Figure 2-5
),
replace cartridge with a new one when all of the
desiccant beads turn dark green (they are gold when
new).
5. Clean exterior of system often; do not let dirt accumulate
on or around any part of system.
6. Check for external leaks. Leaks are not only unsafe,
they also attract dirt and in some cases allow air and
water to enter system. Do not return leakage 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)
7. Look for signs of overheating: heat 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).
If oil temperature in tank goes above 180°F (82°C), a
fault alarm will come on and a fault symbol will appear
on the active display. HYDRULIC RESERVOIR
TEMPERATURE icon will appear on fault display
(Figure 2-4
).
Hydraulic Tank Level and
Temperature Display
FIGURE 2-2
HYDRAULIC FLUID LOW
Fault Icon
FIGURE 2-3

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English