Manitowoc 16000 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-09-17, Control # 014-28 2-17
16000 SERVICE/MAINTENANCE MANUAL HYDRAULIC SYSTEM
2
2. Make sure hydraulic tank shutoff valve (7a, Figure 2-1)
is fully open. Pumps can be damaged from cavitation
if this step is not performed.
3. Connect bleed lines equipped with shut-off valves to
gauge coupler at each pressure sender (Figure 2-35
).
4. Open shut-off valve in each bleed line. Use a suitable
container to catch oil.
5. With all controls off, start and run engine at lowest
possible speed.
6. Bleed pressure senders:
a. Observe oil flowing from bleed line at each pressure
sender.
b. Close each bleed valve when a clear, steady stream
of oil appears (no air bubbles in oil).
c. If oil does not flow from any bleed line, determine
cause and correct.
7. On diagnostic screens (Figure 2-18
), check pump
pressures for load drums, boom hoist, swing, and travel
pumps:
a. Make sure pressure reading for each pump is 250 to
370 psi (17 to 26 bar).
b. If pump pressures are not within specified range,
stop engine immediately. Determine cause of
faulty pressure and correct.
8. Stop engine.
9. Remove bleed lines from gauge couplers at each
pressure sender.
10. Start and run engine at low idle.
11. With engine at low idle, extend and retract all cylinders
three times: rotating bed jacks, mast cylinders, rotating
bed pins (before mounting upperworks) and carbody
jacks (if equipped).
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.
12. With engine running at low idle, slowly cycle each crane
function in both directions for at least five minutes to vent
any remaining air from hydraulic system.
13. Be sure all crane functions operate in proper direction
with relation to control handle movement.
14. Check for hydraulic leaks and correct cause if found.
15. Stop engine and fill hydraulic tank to proper level.
System Calibration and Tests
Control Calibration
Perform the Control Calibration procedure in this section.
High Pressure Test
Perform the High Pressure Test procedure in this section.
CAUTION: Only perform this high pressure test when
absolutely necessary and by a qualified service technician.
Charge Pressure Test
Perform the Charge Pressure Test procedure in this section.
CAUTION
Equipment Damage!
Check pump pressure during first two minutes of
operation. If pressure for any pump is not within specified
range, shut down engine immediately to prevent pump
damage. Troubleshoot to determine cause of problem.

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English