Manitowoc 2250 Service And Maintenance Manual

Reference Only
Manitowoc Published 11-06-15, Control # 040-13 2-45
2250 SERVICE/MAINTENANCE MANUAL HYDRAULIC AND AIR SYSTEMS
2
TYPE A AIR REGULATOR MAINTENANCE
Installation
See Figure 2-45 for the following procedure.
Before installing, blow out the air line to remove scale and
other foreign matter. This unit has Dryseal pipe threads: use
pipe compound or tape sparingly to male threads only. Install
the regulator in the air lines so air will flow in the direction of
the arrow stamped on the body.
Adjustment
To unlock the adjustment, push the knob all the way down.
Turn the knob clockwise to increase regulated pressure or
counterclockwise to decrease pressure. To lock the
adjustment, pull the knob all the way up.
Maintenance
To clean, it is not necessary to remove regulator from the
lines.
If the air supply is kept clean, the regulator should provide
long periods of uninterrupted service. Erratic operation or
loss of regulation is usually due to dirt in the disc area. To
clean, shut off the air pressure and disassemble the
regulator. Clean all parts with denatured alcohol and blow out
the body with compressed air. When reassembling, make
sure the disc stem fits into the center hole of the diaphragm
assembly. If the diaphragm assembly is replaced, make sure
the disc stem fits into its center hole. Tighten the bonnet
slightly more than hand tight 45 in-lb (5,1 N•m).
CAUTION
Cleaning Instructions!
Never use carbon tetrachloride, trichlorethylene, thinner,
acetone, or similar solvents in cleaning any part.
S118
P310
FIGURE 2-45
Item Description
1 Lock Assembly
2 Adjustment Screw
3 Adjustment Knob
4Knob
5 Spring Cage
6 Diaphragm Assembly
7 Disc Assembly
8 Bonnet
1
2
3
5
4
6
7
8

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English