Manitowoc CD25, Руководство оператора, Страница: 144 / 160

MAINTENANCE CD25
6-34 Published 1-06-2017 Control # 579-01
Replace Swing Gearbox Lubricant
1. Clean around the swing gear box drain, check and fill
plugs (Figure 6-48).
2. Remove the fill, check and drain plugs and catch
draining lubricant in a suitable container. Properly
dispose of the lubricant.
3. Install the drain plug.
4. Fill the swing gearbox with EP 90 weight oil until the oil
reaches the bottom of the check plug hole.
5. Install the check plug.
6. Clean the fill plug/vent in a suitable solvent and then
install the plug.
7. Apply a Lithium Base E.P. No. 2 bearing grease to the
grease fitting on the gear box.
Replace the Hydraulic Oil
NOTE: ISO (International Standards Organization) #46/68
Hydraulic Oil (Mobil Fluid #424) is recommended
for year-round use in the hydraulic system.
For operating in cold climates, Mobilfluid 424 may be
substituted with Mobil DTE 10M Series, or equivalent.
Specific series selection should be based on an operating
viscosity range (at operating temperature) to 80 to 170 SUS
(Saybolt Universal Seconds) when referring to tank
temperature. It may be necessary to use a pre-heater and
longer warming period at low operating speed to heat the oil
to operating temperature.
NOTE: The pump used on this crane requires clean
hydraulic oil for proper operation. Contaminated oil
can cause damage to the pump. Before adding any
hydraulic oil to the hydraulic system, be sure the oil
has been filtered through a 10-micron (absolute),
or less, filter.
To change the hydraulic oil:
1. Fully retract and lower the booms.
2. Retract all outriggers.
3. Operate the hydraulic system until the hydraulic oil is
warm.
NOTE: It is necessary to climb under the crane to drain the
hydraulic oil. Be sure engine is shut off, the ignition
key is removed and chock blocks are in place
before climbing under the crane.
4. Level the crane, engage the parking brake, shut off the
engine and remove the ignition key.
5. Place a suitable container under the hydraulic tank drain
port (Figure 6-49).
6. Remove the drain plug (1, Figure 6-49) and drain the oil
into the container.
7. Disconnect the suction hose (2, Figure 6-49) from the
hydraulic tank. Drain the hydraulic oil into the container.
Remove the suction strainer from the hydraulic tank and
clean it in a suitable solvent.
8. Remove the fill strainer from the fill tube and clean it in a
suitable solvent.
9. Clean the inside of the hydraulic tank and remove any
sediment.
10. Install the fill strainer, suction strainer, suction hose and
return hose to the hydraulic tank.
11. Replace the hydraulic oil filter. See Replacing the
Hydraulic Oil Filter, below.
FIGURE 6-48
7444
Grease Fitting
Oil Fill and Level
Plug
Vent
FIGURE 6-49
7407-38
1
2
Reference Only