MSR 06633 Whisperlite International Multi-Fuel Stove Instruction Manual

INSTRUCTION MANUAL

DANGER
FOR OUTDOOR USE ONLY
CARBON MONOXIDE HAZARD
This stove can produce carbon monoxide, which has no odor.
Using it in an enclosed space can kill you. Never use this stove in an enclosed space such as a camper, tent, vestibule, car, or home.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
CARBON MONOXIDE, FIRE, EXPLOSION HAZARD
Theis are serious hazards associated with using this stove and fuel. Accidental fire, explosion, and misuse con cause death, serious bums, and property damage. You ore [espial* for your own safety and the safety of those in your group. Please use good judgment end mod these instructions for use carefully. familiarize yourself with the stove before connecting it to its fuel bottle. Keep these instructions for future reference.
This stove is o lightweight, compact device mode for OUTDOOR USE ONLY to boil water or cook food. Never use it for any abet copse. Cooking outdoors is more hazardous than cooking as you normally would at home. Please consult with your local outdoor Verde to loom more about cocking outdoors. Seek qualified instruction before you venture outdoors.
Follow this safety information:

• Check that the seals between the stove and the fuel bottle are in place and in good condition before connecting the stove to the cylinder Do not use this stove if it has dunned worn seals.
• Keep stove and fuel bottle army from other heat sources. If you expose the fuel bottle to high heat, it wit explode or leak and you can be killed or seriously boned.
• Follow all savings on Fuel bottles regarding use and storage.
• Do not disassemble the stove beyond what is described in these instructions. DO NOT MODIFY THIS STOVE. Disassembly or modification of stove in only manna not consistent with these instructions voids warranty and con result in an unsafe situation where fire, bums, severe injury a death can occur.
• Do not use the stove if ports are missing or broken, or with ‘enlacement ports not specific to your stove model. Use of stove with missing or broken parts, or with replacement ports not speck to your stove model, can result in an unsafe situation where fire, bums, severe injury, or death can occur.

Cascade Designs, Inc. wants the use of appropriately sized MSRs’ brand cookware only —use of cookware other than MSR° bad cookware is at users’ own risk and discretion.

WHISPERLITE™ INTERNATIONAL INSTRUCTIONS

DANGER
Do not use this stove:

1. before reading and fully understanding this Instruction Memel:
2. if you ere not prepared or component Penang to o burning and/a hot stave at all times;
3. if you observe taking fuel; or
4. if you observe my condition with the stove system or in the surrounding imminent that would make the operation of an open Reined device dangerous. Failure to follow these directions can muse on unsafe situations tearing to fire, buns, severe injury, or death.

WHISPERLITE™ INTERNATIONAL STOVE

STOVE PARTS

|

FUEL PUMP PARTS

---|---
A. Burner Head
B. Pot Supports/Legs
C. Mixer Tube
D. Jet
E. Rim Detent
F. Shaker Needle
G. Generator Tube
H. Windscreen
I. Priming Cup
J. Fuel Line (Brass) End
K. Catch Arm
L. Heat Reflector
M. Jet and Cable Tool| N. Plunger Bushing
O. Plunger Bushing Tabs
P. Plunger
Q. Fuel Pump Groove
R. Pump Seal
S. Pump Body
T. Check Valve
U. Control Valve Assembly
V. Fuel Tube O-ring
W. Fuel Tube Bushing
X. Pump Cup

FUEL INFORMATION

The WhisperLiteTM International stove burns a variety of fuels by using two interchangeable Jets.

1. UG Jet — White Gas and Unleaded AutoGas. This Jet is preinstalled on your stove.
2. UK Jet — Kerosene. This Jet is included in the parts kit with your stove. To exchange Jets, see Cleaning the Jet and Fuel Line.

Use MSR® SuperFuel'” (White Gas) for optimal performance. It is the highest quality fuel available for your stove. Do not use leaded fuels. Fuels other than MSR SuperFuel white gas can lead to rapid stove clogging and require more frequent Jet and Fuel Line cleanings. Also, the use of Unleaded Auto Gas may shorten stove lifespan.
Visit www.msrgear.com for more information on international fuel names and safe stove transportation.

STOVE MAINTENANCE

Deposits in the Jet and Fuel Line reduce fuel flow and impair stove performance. Minor deposits in the Jet can be cleared with the Shaker Needle. Major deposits may require more extensive cleaning of the Jet and Fuel Line. At a minimum, perform the following maintenance annually or every time you perform the Pump Maintenance.
CLEARING THE JET WITH THE SHAKER NEEDLE

1. Close Pump Control Valve and wait 5 minutes for the stove to cool.
2. Shake the stove up and down. Shaker Needle inside Jet should rattle.
3. Preheat and run the stove. If performance does not improve, perform Cleaning the Jet and Fuel Line steps.

CLEANING THE JET AND FUEL LINE

|
---|---

1. Fold Pot Supports/Legs to the packed position.

2. Unscrew Priming Cup and remove Wick.

3. Hold folded Pot Supports/Legs together. Remove Fuel Line from Mixer Tube.

4. Unscrew Jet with Jet and Cable Tool.
   IMPORTANT: Do not bend Generator Tube while loosening Jet.

5. Remove Shaker Needle and use it to clear Jet Orifice from top or bottom.
   NOTE: To exchange Jets, place Shaker Needle in new Jet and reassemble stove.

6. Scour Fuel Line. Remove Cable from Fuel Line with Jet and Cable Tool. Stubborn cables can be loosened with a common lubricant (WD-40′”, Pump Cup Oil, etc.). Fully reinsert Cable into Fuel Line. Move Cable in and out with 5-inch (13-centimeter) strokes approximately 20 times Wipe Cable clean.

7. Flush Fuel Line. Remove Cable. Insert Fuel Line into Pump and Fuel Bottle and secure Catch Arm on Fuel Pump Pressurize Fuel Bottle with 15 strokes. Fully open Control Valve to flush 4 spoonfuls of fuel through Fuel Line into an appropriate container. (Jet uninstalled.)
   DANGER: Keep away from ignition sources Close Control Valve and remove Fuel Line. Safely dispose of fuel when flushing is complete.

8. Reassemble stove. If stove performance is still impaired, repeat Cleaning the Jet and Fuel Line steps.

PUMP MAINTENANCE

O-rings can become dry, cracked, or torn with use. Their lifespan is affected by dirt, debris, temperature, friction, and frequency of use. For this reason, please inspect your O-rings before every trip. Replace dry, cracked, or torn O-rings immediately, and replace all O-rings annually, regardless of appearance. Replacement O-rings and Pump Seals can be found in the Annual Maintenance Kit, or the more comprehensive Expedition Service Kit purchased separately from an MSR® dealer.

REPLACING FUEL TUBE 0-RING

1. Remove Plunger. Align, twist, and pull.
2. Remove Fuel Tube Bushing and 0-ring with Jet and Cable Tool. Remove the 0-ring with the end of the Fuel Line or safety pin.
3. Inspect 0-ring and replace if damaged. If needed, a spare red Fuel Tube 0-ring is provided.
4. Lubricate Pump Cup. Use a drop of pump cup oil or any mineral-based oil.
5. Insert Plunger.
   Hold thumb and forefinger firmly around Arrow 1. Align Plunger Bushing Tabs with holes in Pump Body. Push Plunger/ Bushing into the Pump Body until it snaps in place.

REPLACING CONTROL VALVE 0-RING

1. Unscrew Stop Nut
2. turns.
3. Unscrew Control Valve 6 turns.
4. Unscrew Stop Nut completely and remove Control Valve Assembly.
5. Inspect 0-ring and replace if damaged. Remove Control Valve Handle from the stem.
   Slide Stop Nut off. Remove 0-ring with a safety pin.

|

REPLACING PUMP SEAL
Inspect Pump Seal and replace if damaged.
**DANGER Do not add an 0-ring under the Pump Seal. The addition of an 0-ring will cause the pump to leak, leading to a dangerous situation that could result in severe injuries or death.
CLEANING THE CHECK VALVE**

1. Turn Check Valve Assembly to remove.
2. Wipe any debris from Check Valve and Pump Cavity.
3. Reinsert Check Valve Assembly.

**DANGER**
Do not disassemble the stove or pump beyond what is described in these instructions. Disassembly or modification of stove or pump in any manner not consistent with these instructions voids warranty and can result in an unsafe situation where fire, burns, severe injury, or death can occur.
Do not use the stove or pump if parts are missing or broken, or with replacement parts not specific to your stove model. Use of stove with missing or broken parts, or with replacement parts not specific to your stove model, can result in an unsafe situation where fire, burns, severe injury, or death can occur.

Limited Warranty details atmsrgear.com/warranty
For Troubleshooting Solutions, visit:msrgear.com/whisperlite- international

WHISPERLITETM INTERNATIONAL STOVE OPERATING INSTRUCTIONS
To avoid being killed or seriously injured, READ, UNDERSTAND, AND FOLLOW ALL instructions and warnings in this manual before using this stove.
Please familiarize yourself with the parts of your WhisperLite International stove. This stove requires a priming or preheating step to convert liquid fuel into vapor to run properly. Priming or preheating the stove is addressed in Step 3.

STOVE PARTS

|

FUEL PUMP PARTS

---|---
A. Burner Head
B. Pot Supports/Legs
C. Mixer Tube
D. Jet
E. Rim Detent
F. Shaker Needle
G. Generator Tube
H. Windscreen
I. Priming Cup
J. Fuel Line (Brass) End
K. Catch Arm
L. Heat Reflector
M. Jet and Cable Tool| N. Plunger Bushing
O. Plunger Bushing Tabs
P. Plunger
Q. Fuel Pump Groove
R. Pump Seal
S. Pump Body
T. Check Valve
U. Control Valve Assembly
V. Fuel Tube O-ring
W. Fuel Tube Bushing
X. Pump Cup

FUEL BOTTLE PREPARATION
The WhisperLite International stove is sold with two interchangeable Jets so it can burn a variety of fuels. To ensure the correct Jet is installed for the type of fuel to be used, see Fuel Information.

1. Fill Fuel Bottle to fill line only. Air space is necessary for fuel expansion.
2. Insert Pump into Fuel Bottle and firmly tighten.
3. Check Fuel Bottle for leaks before pressurizing the bottle.
4. Close the Control Valve, then stroke Plunger (20-30 strokes). Pump until firm resistance is felt. Less fuel requires more strokes or pressure.

DANGER
Use MSR® fuel bottles only. Non-MSR fuel bottles may leak fuel creating an unsafe situation leading to fire, burns, severe injury, or death. Keep children far away from stove and fuel–Cascade Designs, Inc. recommends no less than 10 feet (3+ meters).
Never leave a burning or hot stove unattended. An unattended stove can lead to fire and/ or a situation where children, pets, or the unwary can be burned, injured, or killed. Use extreme caution when using the stove in temperatures below freezing. In freezing temperatures, O-rings can stiffen and leak fuel. Always check for fuel leaks before and after pressurizing the bottle, priming, and during and after lighting the stove. Use of a leaking stove can cause fire, burns, severe injury, or death.

SET UP STOVE

1. Unfold the 3 Pot Supports/Legs. Rotate Pot Supports/Legs fully open.
2. Place stove on the center of the Heat Reflector.

DANGER
Keep combustibles at least 4 feet (1.2 meters) away from the top and sides of a burning stove or a stove that you are in the process of lighting. Keep flammable liquids and vapors at least 25 feet (7.6 meters) away from the top and sides of a burning stove or a stove that you are in the process of lighting. This stove can ignite combustible materials, flammable liquids, and vapors creating a situation where fire, burns, severe injury, or death can result. This stove is designed for the outside (i.e., not within enclosure spaces of any kind; e.g., tents) boiling of water or cooking of food only–never use it for any other purpose. Use of stove within any enclosure, or for a purpose other than boiling water or cooking food can cause fire, burns, severe injury, or death.

CONNECT STOVE AND PUMP

1. Lubricate the entire brass end of the Fuel Line with saliva or oil.
2. Completely insert the brass end of the Fuel Line into the Pump. Place Fuel Bottle on its side so Pump Control Valve points up.
3. Secure the Catch Arm on Fuel Pump Groove. Keep Fuel Line straight for safety. Keep Fuel Bottle as far away from the stove as possible.

DANGER
Before every use, look for fuel on the fuel bottle, pump, fuel line, burner, and on the area beneath and around the stove. Do not light the stove if you see or smell fuel. (See Troubleshooting.) Use of stove where fuel has leaked and/ or is leaking can cause fuel to ignite causing fire, burns, severe injury, or death. Never disconnect the fuel line, pump, or fuel bottle when the stove is burning, hot, or near any open flame. Never disconnect the fuel line, pump, or fuel bottle when the control valve is in an open (i.e., fuel flowing) position. Disconnecting fuel line, pump, or fuel bottle when the stove is burning, hot, or near any open flame, or disconnecting fuel line, pump, or fuel bottle when the control valve is in an open (i.e., fuel flowing) position can lead to spilled fuel that can ignite and cause fire, burns, severe injury or death.

PREHEAT STOVE

1. Release only 1/2 spoonful of fuel. Open Control Valve (3/4 turn) and let fuel flow through the Jet. Close Pump Control Valve. Look for fuel in Priming Cup and on Wick.
2. Light fuel in the Priming Cup. A brief soccer ball-sized flame is normal.

DANGER
Never place your head or body above the stove while priming, lighting, or cooking. Because the stove maintains an open flame, placement of head or body above the stove is an unsafe practice that can cause fire, burns, severe injury, or death. Never use excess fuel to preheat the stove.
Use of excess fuel for priming can lead to leaking or spilled fuel that can cause fire, burns, severe injury, or death.

TURN STOVE ON

1. Wait for preheating flame to reduce in size (approximately 2 minutes). If the flame goes out, wait 5 minutes for the stove to cool before relighting.
2. Open Pump Control Valve (1/2 turn) and wait for the steady blue flame.
3. Slowly open the Pump Control Valve.

DANGER
Never relight a heated stove. Always let an extinguished stove cool for at least 5 minutes before relighting. Relighting a heated stove can cause large flames that can cause fire, burns, severe injury, or death. Never move a burning or hot stove.
Always extinguish the stove and cool for at least 5 minutes before moving. Moving a burning or hot stove can cause fire, burns, severe injury, or death.

USE STOVE TO COOK

1. Set up Windscreen. Fold the ends of the Windscreen together.
   Leave a 1-inch (2.5-cm) gap between Windscreen and pot for optimal performance. Ensure that combustion flow and ventilation air are free of any obstruction. Use Windscreen to improve performance in all conditions.

2. Add appropriate food or liquid to cookware and place it on the center of the stove.

3. Maintain Fuel Bottle pressure. Add approximately 10 strokes every 10 minutes to maintain performance. Hold Fuel Bottle firmly while pumping.

DANGER
Keep the fuel bottle away from the stove burner and other heat sources. Position connected fuel bottle so that it is as far away from the burner as possible. Use of a bottle near a burner or other heat sources can result in the fuel bottle exploding and causing fire, burns, severe injury, or death. Never place Windscreen around the fuel bottle.
Never use cookware with a diameter greater than 10 inches (25 centimeters). Never place and operate two or more stoves together. Never operate a stove with empty or dry cookware. Never use non-MSR® reflectors or diffusers. Use of stove in any of the preceding manners can result in the fuel bottle exploding and causing fire, burns, severe injury, or death.
Never use cookware of any size that is ill-suited or inappropriate for use with stove or stove pot supports (e.g., cookware with a convex or concave bottom, some enameled cookware, etc.). Use of stove with ill-suited and/or inappropriate cookware can result in cookware and/or stove instability and a situation where hot cookware and/or cookware contents can spill and cause fire, burns, severe injury, or death.
Cascade Designs, Inc. warrants the use of appropriately sized MSR® brand cookware only–use of cookware other than MSR® brand cookware will be at the user’s own risk and discretion.

TURN THE STOVE OFF

1. Close Pump Control Valve. Residual fuel will continue to burn with a small flame.
2. After flames are out, wait 5 minutes for the stove to cool.
3. Unlock Catch Arm and remove Fuel Line from Pump.
4. Depressurize Fuel Bottle and repack stove. Hold Fuel Bottle upright, away from your face and any sources of heat or ignition. Slowly unscrew the pump to depressurize the Fuel Bottle.
   NOTICE: To transport the Fuel Bottle, the Pump may be left inside a depressurized Fuel Bottle. The Pump can also be removed and replaced with the Fuel Bottle Cap.

DANGER
Always store a fuel bottle with a cap securely tightened where it cannot be accessed by children. Storage of fuel bottle with loose cap and/or where accessible by children can result in a child obtaining possession of fuel bottle and accessing bottle contents. Exposure to bottle contents topically and/or by ingestion can cause poisoning, severe injury, or death. Always store fuel bottles in a well-ventilated location away from any possible heat or ignition source such as water heaters, stoves, pilot lights, or furnaces. Storing bottles near any heat or ignition source can result in the fuel bottle exploding and causing fire, burns, severe injury, or death.

TROUBLESHOOTING

Leaking Fuel

| Cause|

Solution

---|---|---
At Pump and Fuel Bottle Connection| Damaged or missing Pump Seal| Replace Pump Seal
At Pump and Fuel Line Connection| Damaged or missing Fuel Tube 0-ring| Replace Fuel Tube 0-ring
At Control Valve Stem| Damaged or missing Control Valve O-ring| Replace Control Valve 0-ring
In Pump Plunger Chamber| Obstructed Check Valve| Clean Check Valve Cavity

Poor Performance

| Cause|

Solution

Pump not pressurizing Fuel Bottle| Loose or poorly seated Pump Damaged Pump Cup| Tighten or re-screw Pump on Fuel Bottle
Replace Pump Cup
Plunger hard to pump| Dry Pump Cup| Lubricate Pump Cup
Erratic yellow flames| Improper preheating| Repeat Step 3
Diminished flames| Low Fuel Bottle pressure| Pump the Plunger
Slow boil times| Clogged Jet or Fuel Line| Clear Jet and clean Fuel Line
Diminished flames at altitude| Insufficient airflow| Open Windscreen slightly

FOR OUTDOOR USE ONLY

MOUNTAIN SAFETY RESEARCH®
Cascade Designs, Inc.
4000 First Avenue South, Seattle, WA 98134 USA
Cascade Designs, Inc., USA – 1-800-531-9531 or 206-505-9500
Cascade Designs, Ltd., Ireland – (+353) 21-4621400
www.msrgear.com
info@cascadedesigns.com

References

• MSR | Mountain Safety Research: Backpacking, Camping & Mountaineering

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