Manitowoc 16000 Service And Maintenance Manual

Reference Only
HYDRAULIC SYSTEM 16000 SERVICE/MAINTENANCE MANUAL
2-10
Published 05-09-17, Control # 014-28
17. Fill hydraulic tank to FULL COLD LEVEL – 87-90% –
while watching hydraulic tank display on information
screen (see Figure 2-2
). Use proper hydraulic oil (see
Section 9).
Do not fill tank to 100%. Oil will flow out of breather.
18. Fill tank manually through plug opening (2a) or by
pumping oil through power-fill coupling (2b) with an
owner supplied portable pump. Use new hydraulic oil
filtered through a 10-micron filter.
Do not fill tank through breather port or top of either
filter. Hydraulic system could be contaminated from
unfiltered oil.
19. Securely install vent plug (10 or 12) and vent cap (11)
and as soon as clear oil appears at each vent opening.
20. Apply 3-5 psi (.21-.35 bar) owner supplied air pressure
to air valve (4a) or to coupler (4b) on hydraulic tank.
Some air will leak from breather cap.
Observe bleed ports:
a. If equipped, securely install vent plugs when clear
oil starts flowing from bleed ports in charge filters
(6).
b. Securely install vent caps (9) when clear oil starts
flowing from bleed ports in charge pressure
manifold.
21. Disconnect air supply.
22. Check tank level and refill as required.
23. Start engine and allow hydraulic system to return to
normal operating pressure and temperature. Check for
leaks and tighten parts as required.
24. Stop engine, check tank level, and refill as required.
NOTE: If the hydraulic system was extremely dirty (gum or
lacquer formation on parts indicated by erratic,
jerky, or sluggish operation) repeat Changing Oil
procedure after 48 hours of operation.
Servicing Pumps
It is not necessary to drain the hydraulic tank when servicing
the hydraulic pumps. To service the pumps, close shut-off
valve (7a, Figure 2-1
) in the pump suction manifold.
Open the valve prior to starting the engine after servicing the
pumps.
Tightening Hydraulic Connections
• Make sure fittings and O-rings being used are proper
size and style.
• Flush sealing surfaces with clean hydraulic oil to remove
any dirt.
• Carefully inspect threads and sealing surfaces for nicks,
gouges, and other damage. Do not use damaged parts;
they will leak.
• Carefully inspect O-rings for cuts and other damage. Do
not use damaged O-rings: they will leak.
• Always lubricate O-rings when assembling on fittings.
• Be careful not to cut O-rings when assembling them to
fittings. Use thimble as shown in Figure 2-10
when
assembling O-ring over threads.
Pipe Thread Connection
1. Apply sealant (Loctite 92 or equivalent) to male threads,
never to female threads. Do not apply sealant to first two
male threads.
2. Tighten fittings about 4-1/2 turns by hand and then 3
additional turns with a wrench.
Table 2-2 Pipe Thread Leakages
CAUTION
Avoid Damage to Pumps!
Open hydraulic tank shut-off valves before starting
engine. Failing to perform this step will result in damage to
pumps from cavitation.
CAUTION
Hydraulic System Damage!
Do not use PTFE (“teflon”) tape to seal threads. Pieces of
tape will enter hydraulic system and cause damage.
Causes Cures
Fitting loose. Tighten.
Fitting too tight causing thread
distortion.
Replace damaged parts.
Threads on fitting/port wrong size. Use proper size threads.
Threads dirty, galled or nicked. Clean or replace parts.
Straight thread used instead of
tapered thread.
Use proper type and
size thread.
Threads expanded from heat. Tighten when hot.
Fitting loosened by vibration. Retighten.
O-Ring
Plastic or Metal
Thimble Covering Threads
FIGURE 2-10
S103

Manitowoc 16000 Specifications

General

Brand	Manitowoc
Model	16000
Category	Construction Equipment
Language	English