Marshall Excelsior MEGR-167CH/751 User manual

The contents of this publication are for informational purposes only. While every effort has been made to ensure accuracy, these
contents are not to be construed as warranties or guarantees, expressed or implied, regarding the products or services described herein or
for their use or applicability. Marshall Excelsior Co. reserves the right to modify or improve the designs or specifications of such
products at any time without notice. The MEC™ logo is the trademark of Marshall Excelsior Co.
Form #912 Rev A
MEGR-167CH/751 GAS REGULATOR
Instruction Manual- Look Inside For:
Description
Installation
Operation
Maintenance
Parts Ordering
Parts List
Marshall Excelsior Company
Marshall, MI 49068
269-789-6700
FAX [phone]
www.marshallexcelsior.com
MEGR-167CH/751 Instruction Manual

MEGR-167CH/751
GAS REGULATOR
INSTRUCTIONS
Form #912 Rev A
These regulators are designed for air and gas service. Maximum pressures are described on the
individual labels. Operating temperatures are 0° to 160°F.
INSTALLATION:
Install the regulator as close to the instrument or tool it is to service. The words "IN" and
"OUT" are cast in the body to indicate the direction of flow. (NOTE: If a lubricator is to be
used in the system, install it downstream of the regulator.)
OPERATION:
MEGR-167CH/751: Before turning on the supply air, screw out the adjusting screw
until there is no compression on the regulating spring. Turn on
the air supply and turn the adjusting screw until the desired
secondary pressure is reached.
WARNING: The MEGR-167CH/751 is supplied with a 1/4"-18 NPT tapped vent
port that allows for installation of plumbing to capture exhaust gas.
Under no circumstances should this exhaust port be plugged. The
plugging of the vent port will cause damage to the internal
components of the regulator and prevent the regulator from
functioning properly.
MAINTENANCE:
Periodic cleaning of the filter is recommended on MEGR-167CH/751 regulators.
A. To remove condensate, slowly open drain valve and bleed accumulated liquid.
B. To clean filter element:
1) Shut off air supply.
2) Drain condensate.
3) Remove large bolt from bottom of unit
4) Remove bowl, filter and gasket.
5) Clean all parts thoroughly and reassemble in reverse order.
C. To install replacement parts:
1) Order repair kit for MEGR-167CH/751
2) Shut off air supply. Screw out adjusting screw.
3) Remove 4 screws and bottom hex head screw and remove all parts.
4) Replace parts that show excessive wear with items in kit.
5) Clean all parts and replace in reverse order.
6) The pintle spring screw should be installed finger tight with a screw driver.
Bottom hex head screw should be torqued to 22-25 ft./lbs.
Direct any specific questions to the nearest MEC sales engineer or to the factory.