WARNING:
INSTALLATION & MOUNTING
The user of these devices must conform to all
applicable electrical, mechanical, piping and other
codes in the installation, operation or repair of
these devices.
HE - 2 TYPE CONTROLAIR
®
VALVE
Service Information
FIG. 1 EXTERIOR VIEW
SM-800.6511
INSTALLATION!
Do not attempt to install, operate or repair these
devices without proper training in the technique of working on pneu-
matic or hydraulic systems and devices, unless under trained supervi-
sion.
Compressed air and hydraulic systems contain high levels of stored
energy. Do not attempt to connect, disconnect or repair these products
when a system is under pressure. Always exhaust or drain the
pressure from a system before performing any service work. Failure to
do so can result in serious personal injury.
MOUNTING!
Devices should be mounted and positioned in such a
manner that they cannot be accidentally operated.
PRESSURE vs. LEVER TRAVEL
OFF
CLUTCH
FULL
TRAVEL
DESCRIPTION OF MODELS
The HE-2 type CONTROLAIR Valves are handle operated units
consisting of one 3-way directional side valve, and a 3-way pressure
graduating portion. The directional side valve is arranged to supply
inlet pressure to a separate delivery line. The pressure graduating
portion is arranged to increase, decrease, or maintain graduated air
pressure to a second separate delivery line.
In "off" position both delivery lines are exhausted. Handle movement
from "off" position actuates the graduating pressure to a delivery line.
The first 10 degrees of handle travel from "off" position to "clutch"
position opens the side valve to direct inlet supply pressure to a
second delivery line. Further movement of handle past 10 degrees to
full travel position, or 92 degrees, continues to activate the pressure
graduating valve to deliver graduated pressure which increases in
proportion to the amount of handle movement from neutral. The
maximum pressure obtained at full handle travel depends on the value
of the control spring installed.
MODELS
There are three models identical in function, but different in handle
operating charactistics.
HE-2-X CONTROLAIR
Valve - Handle is spring returned to the
“clutch” or off position from all other positions in the handle travel arc,
EXCEPT Part No. R434002110 (P -062026-00001) which returns han-
dle to “off” position from all other positions.
WARNING:
The possi-
bility of handle returning to “off” position does exist in all HE-2-X mod-
els in positions from clutch through full travel position when released.
HE-2-LX CONTROLAIR
Valve - Handle is spring returned to “clutch”
or “off” position from all other positions in handle travel arc, EXCEPT
there is mechanical detent to handle the handle at the maximum
pressure position.
TABLE OF CONTENTS PAGE
Description of Models……………………………………….1
Graphical Symbols…………………………………………..1
Technical Data……………………………………………….2
Installation…………………………………………………….2
Maintenance and Repair……………………………………2
Outline Dimensions………………………………………….3
Description of Operation……………………………….4 & 5
Identity Schedule……………………………………….6 & 7
Exploded Views……………………………………………. 8
Parts List……………………………………………………. 9
Assembly Section Views…………………………….10 & 11
Repair Kit List……………………………………………….12
Maintenance and Repair Instructions…………………… 13
Adjustment and Testing
Adjustments:
Graduated Output Adjustment……………………..13
Preload Setting Adjustment………………………..13
Cam Dog Adjustment……………………………….13
Side Lever Adjustment……………………………...13
Friction Brake Adjustment………………………….13
Testing:
Function……………………………………………...14
Pressure Range……………………………………..14
Leakage……………………………………………..14
Flow Capacity………………………………………14
Response……………………………………………14
Mechanical Detent………………………………….14
Test Setup………………………………………………15
Warnings and Warranties………………………………….16
WARNING!
Increased friction due to dirt and wear may
caused handle not to return to clutch position from lower end
of travel arc.
HE-2-FX CONTROLAIR Valve
- Handle is equipped with a
friction brake that will hold the handle in any position selected
in the handle travel arc. The brake is internally adjustable.
