Miller WDW101 Manual del usuario - Página 3

Navegue en línea o descargue pdf Manual del usuario para Sistema de soldadura Miller WDW101. Miller WDW101 5 páginas. Gasaver

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4. Installation

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The Gasaver is a shut-off unit but not

a pressure regulating device. The

Gasaver must be installed down-

stream of the pressure regulators.

Step 1. Secure the Gasaver on a bench by

using the four mounting holes in the base.

Position the Gasaver so that when the

torch is hung on the lever rod, the torch

and tip will point away from the operator

and not toward any combustible material.

Step 2. The Gasaver is shipped with the

lever rod (Item 13) packed separately. In-

sert the straight end of the rod, flat side up,

into the hole in the saddle (Item 9) on the

side of Gasaver marked OUTLET. Push

rod through saddle hole until rod protrudes

through opposite side of saddle. Tighten

lever rod lock screw (Item 12).

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Use only industrial grade welding

hose for welding, brazing, cutting,

and heating with oxy-fuel equipment.

These hoses are generally color

coded green for oxygen and have a

right hand threaded connection; fuel

hoses are red in color and have a left

hand threaded connection with a

groove around the nut. Use grade R

and RM hoses only for acetylene. T

grade hose can be used for acetylene

and must be used for other fuel

gases.

5. Operation

Shut off equipment when not in

use.

Do not use matches or a cigarette

lighter to ignite the gas.

Pressure Settings

The Gasaver does not affect regulator

pressure settings for the torch. Use the reg-

ulator pressure settings you currently use

for each regulator (as if the Gasaver were

not in the system).

Pilot Light

Start gas flow through the pilot light by turn-

ing the pilot light shield slightly counter-

clockwise and immediately ignite the gas

with an approved friction spark lighter. Ad-

just flame by turning the pilot light shield.

Using The Torch

Use the torch as recommended by the

manufacturer. When finished, instead of

closing torch valves, place the torch on the

lever rod to extinguish the flame. If gas

continues to flow, adjust lever rod (see Lev-

er Rod Adjustment below). To resume

work, remove the torch from lever rod and

quickly relight torch at the pilot flame.

Step 3. Connect the fuel gas hose from the

regulator (grooved nut) to the connection

marked INLET—L.H. Connect the oxygen

hose from the regulator (smooth nut) to the

connection marked INLET—R.H. Tighten

connections firmly with a wrench. Connect

separate fuel source to pilot light

(WDW103 only).

Step 4. Connect torch hoses to the respec-

tive Gasaver outlets. Connect fuel gas

hose (grooved nut) to OUTLET—L.H., and

oxygen hose (smooth nut) to OUTLET—R.

H. Connect torch to hoses. Tighten connec-

tions firmly with a wrench. Close torch

valves.

Step 5. Shut off pilot light by turning the pi-

lot light shield, located at the top of the pilot

light (Item 15), clockwise until it stops. Do

not use excessive force. Place the torch on

the lever rod (item 13).

Step 6. Open cylinder or pipeline valves.

Adjust regulators to operating pressures.

Step 7. Lift torch from lever rod. Purge the

oxygen from the system by opening the

oxygen torch valve 1/4 turn, allowing oxy-

gen to pass through the torch for 3–5 sec-

onds for every 25 ft (8 m) of hose, and then

closing the valve. With the oxygen flowing,

set the recommended pressure on the oxy-

gen regulator.

Step 8. Close the oxygen valve on the

torch handle.

Lever Rod Adjustment

When placing the Gasaver in operation,

adjust the lever rod so the weight of the

torch closes the valves.

When the torch is placed on the lever rod,

the torch flame should be extinguished. If

the flame is not extinguished, adjust lever

rod as follows:

Step 1. Loosen the lever rod lock screw

(Item 12) and slide the lever rod (Item 13)

and torch forward in the saddle (Item 9) to

a point where the flame is extinguished.

Step 2. Tighten the lever rod lock screw.

Step 3. If either gas continues to flow, it

may be necessary to adjust the seat pres-

sure as described in the following section.

Seat Pressure Adjustment

Step 1. Initial adjustment was made at the

factory. This adjustment should be per-

formed only if lever rod adjustment does

not enable gas shut-off function or if the

Gasaver has been rebuilt.

Step 2. Loosen the lever-rod lock screw

(Item 12). Slide the lever rod (Item 13)

through the saddle (Item 9) until rod pro-

trudes through opposite side of saddle.

Step 3. Tighten lever rod lock screw.

Step 9. Purge the fuel gas by opening the

fuel valve 1/4 turn, allowing fuel to pass

through the torch for 3–5 seconds for every

25 ft (8 m) of hose, and then closing the

valve. Set the fuel regulator while the gas

is flowing to the recommended pressure.

Step 10. Close the fuel valve on the torch

handle. The system is now pressurized.

Place torch on lever rod.

Step 11. Check every connection and joint

from the cylinder valve to the torch tip with

an approved leak detection solution. If

leaks are detected, eliminate them before

proceeding. If leaks cannot be eliminated,

do not put the equipment into service until

it has been repaired or replaced.

Step 4. Loosen the adjusting screw lock

nuts (Item 10).

Step 5. With the torch in place on the lever

rod, turn the seat adjusting screws (Item

11) clockwise until gas flow stops, then turn

screws one–half turn farther. Retighten ad-

justing-screw lock nuts. Do not allow ad-

justing screws to turn while tightening lock

nuts.

Step 6. When both gases shut off simulta-

neously, a flash, or pop, may occur. This

condition can be reduced by lagging the

shut-off of fuel. Loosen the lock nut for the

fuel seat adjusting screw. Turn adjusting

screw counterclockwise one-half turn. Test

torch, and turn screw further if necessary.

Retighten lock nut.

Removal From Service

Step 1. Shut off valves upstream of

regulators.

Step 2. Lift torch from Gasaver lever rod

and open torch valves to bleed system.

When regulator outlet pressure drops to

zero (0) psig, release regulator adjusting

screw pressure by turning handle

counterclockwise.

Step 3. Remove Gasaver from system.

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