Marshall Excelsior ME980-905 User manual

Installation Instructions

For:ME980-905, ME980-905-25

and ME980-905-50

Marshall Excelsior Company

1506 George Brown Drive Marshall, MI 49068

Phone (269) 789-6700 Fax (269) 781-8340

www.marshallexcelsior.com

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 #921 Rev A

!!!WARNING!!!

READ AND UNDERSTAND ALL INSTRUCTIONS INCLUDED WITH THIS INSTRUCTION

MANUAL. RELIEVE ALL PRESSURE FROM SYSTEM BEFORE SERVICING VALVE

WARNING!

Failure to follow these instructions or to properly

install and maintain this equipment could result in

an explosion and/or fire causing property damage

and personal injury or death.

Marshall Excelsior equipment must be installed,

operated, and maintained in accordance with

federal, state, and local codes and MEC

instructions. The installation in most states must

also comply with NFPA 58 or ANSI K61.1 standards.

Only personnel trained in the proper procedures,

codes, standards, and regulations of the LP-Gas or

anhydrous ammonia industries should install and

service this equipment

Latch End

Remote Release End

Figure 1

Lanyard

ME980C-6, -8

NOT INCLUDED

CABLE RELEASE CONNECTIONS

WARNING!

Remote release cables shall be installed so that

they will close the ME980 valve(s) when pulled

from the farthest remote location. Cable shall

operate smoothly, over pulleys and/or through

conduit. Do not kink cable or run cable around

sharp corners. If installed in conduit, keep water

out of conduit. Frozen water, dirt or dried mud in

the conduit will render the remote release

inoperable.

Remote releases used on ME980 valves shall not:

(a) be made from plastic or fiber rope;

(b) have any kind of fusible link which could melt

and prevent the cable from pulling the ME980

latch.

To provide a remote release, aircraft cable can be

connected to the short looped cable on the valve

and run to the remote release point over pulleys or

through conduit. Adjust the cable so that minimal

pull is required to close the emergency valves.

ME980-906-25 or ME980-906-50

Cable Installation

To connect an ME980 remote release assembly,

which is supplied with either 25' or 50' of cable:

1. Run the inner cable and housing assembly

to the remote release point. Leave enough

slack on each end for a smooth, flowing

path, without sharp bends in the cable,

between the ME980 latch and remote

release handle.

2. If it is necessary to cut the cable to a shorter

length, pull about one foot of inner cable

from the ME980 latch cable end (end with

the 3/16 by 1/2" long cylindrical cast fitting,

(see Figure 1) from the housing.

At the remote release end (other end of

inner cable housing assembly), cut the cable

jacket and inner cable at desired length.

Push the excess inner cable back through

the housing so that the bare cable extends

from the remote release end.

3. Close the ME980 valve

4. Unscrew the cable guide from the latch

body.

5. Remove the latch pin from the valve body

and remove the latch body from the valve

body.

6. Remove the plunger, spring and lanyard

(not shown).

7. Thread the cable guide onto the latch end

cable fitting and tighten the jam nut.

8. Install the spring on the cable and insert the

cable end in the plunger.

Latch Pin

Jam Nut

Cable Fitting

Plunger

Cable Guide

Figure 2

Plunger Spring

Latch Body

Valve Body

9. Install the plunger, spring and guide into

latch body and TIGHTEN SECURELY.

10. Align the slot in the plunger, insert the latch

body into the valve body and pin in place

with latch pin.

11. Mount the remote release bracket to a

suitable stationary support and mount the

remote release to the bracket.

12. At the remote release end, strip 3/4" of

vinyl cover from cable jacket.

13. Insert the inner cable end completely

through the remote release with pull

handle pushed all the way in. Release cable

should extend beyond the pull handle.

14. Pull any slack through the remote release

(with the pull handle pushed all the way in)

and TIGHTEN CABLE SET SCREW SECURELY.

15. Test the remote release and ME980

operation from the most remote location.

Rotate ME980 valve handle to open valve.

Valve must stay open. HANDLE AND VALVE

MUST QUICKLY "SNAP" CLOSED when (a)

the remote release cable is pulled, and (b)

ME980 valve handle is pushed closed from

the open position.

16. Cut-off excess cable from pull handle.

WARNING!

All open ME980 emergency valve(s) attached to the

remote release must properly close when the

release cable is pulled.

Maintenance

WARNING!

Only qualified service personnel should attempt to

repair these valves. Before starting any type of

repair, close off the upstream valves in the system

and remove all pressure from both the inlet and

outlet of the ME980 Emergency Shutoff Valve.

At least once a month, inspect and check the

following:

1. See that the remote release is properly

connected, works freely, and is not

worn. Operate the release to make

certain it closes the valve. If the valve

closes slowly, packing replacement may

be required.

2. Make sure that the lever, latch, and release

are working smoothly. The latch parts and

lever are easily accessible for replacement

or repair by removing the securing bolts.

3. Check for packing and joint leakage.

Remote Release

Release Bracket

Figure 4

Remote Release

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