Manitowoc 2250 Service Maintenance Manual

Reference Only
Manitowoc Published 07-19-16, Control # 249-01 2-17
2250 SERVICE/MAINTENANCE MANUAL HYDRAULIC AND AIR SYSTEMS
2
Initial Oil Fill
NOTE: Use new hydraulic oil of the proper viscosity filtered
through at least a 10-micron filter.
1. Fill each motor case with clean oil to the level of the case
drain port (Figure 2-17
).
2. Fill the pump cases as follows.
a. Remove the pipe plug from the case drain return
pipe (Figure 2-19
).
b. Slowly fill the pipe with clean oil. Air will gurgle out of
the pipe as oil is added.
c. Stop filling the pipe when oil stops gurgling and the
pipe is full.
d. Securely install the pipe plug.
3. Fill the hydraulic tank with clean oil to the middle of the
High Level sight gauge (Figure 2-20
).
Pressure Sender Calibration
Perform this procedure before initial start-up.
1. Turn on the cab power switch.
2. Turn the Crane Mode Selector key counterclockwise to
the CONFIRM position and hold.
3. Turn the Engine Run/Stop switch to the RUN position.
4. Continue to hold the Crane Mode Selector key in the
CONFIRM position for one minute after performing
step 3
.
5. Confirm proper calibration. With the engine off (key in
the RUN position), the charge pressure on the
diagnostic screen for each crane function should be
3,4 bar (50 psi) or less.
FIGURE 2-19
Access at Left Rear Side of Rotating Bed
(to rear of pumps)
Pipe
Plug
P969
Case Drain
Return Pipe
FIGURE 2-20
Hydraulic
Tank
P600
P593
Fill Cap
Access at Right Outboard Side of Rotating Bed
(next to boom hoist)
High Level
Sight Gauge
Low Level
Sight Gauge
Inboard Side of Tank

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English