TM 5-3820-256-10
j.
Control Air System.
Figure 2-10 . Control Air System Controls and Indicators
CONTROL or
KEY
INDICATOR
FUNCTION
1
Control air shutoff valve
Regulates air supply to controls. Rotate hand-
wheel CCW to open; CW to close.
2
Air filter sight glass
Visual indicator of amount of water in bowl.
3
Air filter draincock
Valve for draining water and relieving pressure
in filter bowl.
4
Air pressure regulator
Valve to regulate pressure in control air system.
Rotate knob CCW to increase pressure; CW
to decrease.
5
Control air pressure gage
Gage that indicates pressure in control air sys-
tem. Range: 110-130 psi.
6
Air lubricator draincock
Valve to drain lubricant or antifreeze and re
lieve pressure from lubricator bowl.
7
Air lubricator sight glass
Visual indicator of lubricant or antifreeze in
lubricator bowl.
8
Air lubricator adjusting
Adjusts the flow rate of lubricant or antifreeze
screw
solution. Rotate CCW to increase; CW to
decrease.
2-8