Manitowoc 2250 Service And Maintenance Manual

Reference Only
HOISTS 2250 SERVICE/MAINTENANCE MANUAL
5-18
Published 11-06-15, Control # 040-13
5. Inspect all pins and linkage for excessive wear; replace
parts as required. Excessively worn pins and linkage will
make it difficult to properly adjust clutches.
Lubricate clutch linkage according to lubrication in
Section 9 of this manual.
6. Position rod end of clutch cylinder in access hole.
Dimension between end of cylinder and rod end must be
1-1/2 to 2-1/8 in (38 to 54 mm).
• If dimension is within specified range, no further
adjustment is required. Go to step 9.
• Perform steps 7-9 when minimum dimension is
reached.
7. When dimension reaches 1-1/2 in (38 mm), proceed as
follows:
a. Position adjusting nut in access hole.
b. Loosen jam nut several turns.
c. Release clutch. See procedure in Table 5-1
.
d. Tighten adjusting nut as required. Turning adjusting
nut one flat will move cylinder rod out approximately
9/16 in (14 mm).
e. Apply clutch. See procedure in Table 5-1
.
f. Repeat steps 6
and 7a through 7e until dimension is
2-1/8 in (54 mm).
g. Repeat step 7a
and securely tighten jam nut to lock
adjustment.
8. Adjust each band guide as follows:
a. Position band guide in access hole.
b. With clutch applied, check clearance between band
guide and clutch band with a feeler gauge.
Clearance should be 1/32 in (1 mm).
c. If necessary, loosen mounting screws and
reposition band guide to obtain specified clearance.
Then securely tighten mounting screws.
9. Reinstall cover over access hole.
Table 5-1 Clutch Inspection
Band Disassembly and Assembly Notes
Each clutch band consists of five segments fastened
together with a connecting plate and cap screws as shown in
Figure 5-14
, View A. This arrangement makes the band
easier to disassemble.
WARNING
Falling Load Hazard!
Only use Manitowoc original equipment lining. Other
lining may not provide proper clutch torque. Clutch could
slip, allowing load to drop.
Clutch Being Adjusted To Release Clutch To Apply Clutch
THREE DRUM CONFIGURATION
Left Rear
Select left with Rear Drum Selector
Switch
Pull Back Front Drum Handle Pull Back Rear Drum Handle
Right Rear
Select right with Rear Drum Selector
Switch
Pull Back Front Drum Handle Pull Back Rear Drum Handle
Front Pull Back Rear Drum Handle Pull Back Front Drum Handle
TWO DRUM SPLIT REAR CONFIGURATION
Left Rear Pull Back Right Drum Handle Pull Back Left Drum Handle
Right Rear Pull Back Left Drum Handle Pull Back Right Drum Handle
TWO DRUM INDEPENDENT CONFIGURATION
Front Pull Back Rear Drum Handle Pull Back Front Drum Handle
Rear Pull Back Front Drum Handle Pull Back Rear Drum Handle
NOTE: Pull back specified handle only enough to release and apply clutch without turning drum. Listen for exhausting air
from clutch cylinder. Air will exhaust from cylinder on clutch being serviced when clutch applies. Air will exhaust
from cylinder on opposite clutch when clutch being serviced releases.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English