Career 707 air rifle Manual

Content

Page Number

Specifications 2
Safety Mechanism 2
To Charge the Rifle 3
Built-in Pressure Gauge 4
Storing the Rifle Under Charge 4
To Remove the Magazine 4
To Load the Magazine 5
To Cock the Rifle 5
To Uncock the Rifle 5
Dry Firing the Rifle 5
To Feed Pellets from the Magazine 6
To Clean the Barrel 6
To Clear the Barrel of a Jammed Pellet(s) 6
To Load Pellets One-at-a-Time 7
Adjusting the Power 7
Adjusting the Rear Sight 8
Adjusting the Weight of the Trigger Pull 9
Adjust the Universal Pell-Stop to Accept a Different Size Pellet 9
Recommended Lubricants 9
Warranty 9
Diagram and Parts List 10

Specifications

Type: Precharged pneumatic, lever-action repeating rifle.

Calibers available: .177 cal. (4.5 mm)

.20 cal. (5.0 mm)

.22 cal. (5.5 mm)
.25 cal. (6.35 mm)

Power Storage: Two built-in air chambers (approximately 380 cc in total).

Power Source: Compressed air from hand pump or scuba tank.

Magazine: Multi-feed horizontal magazine clip.

Magazine Capacity: 7 to 15 pellets, depending on the size of the pellet.

Overall Length: Carbine: 34.5 inches. Rifle 42.5 inches.

Weight: Carbine: 6.25 lbs. Rifle: 7.5 lbs.

Barrel: Carbine: 16 inches. Rifle: 23.75 inches.

Front Sights: Hunting style ramp with bead.

Rear Sights: Fully adjustable open-square notch.

Stock: Indonesian Walnut.

Trigger: Two stage trigger, adjustable to approximately two pounds.

Safety: Positive cross-bolt.

Features: Rubber butt pad, 12-stage power adjustment wheel, built-in air pressure gauge, universal pellet-stop, magazine clip, and quick-fill receptor port.

Accessories: Easyup 10 air pump, gun case, extra magazine clips and precision Korean pellets.

Read all directions before firing or adjusting the rifle. Refer to the diagrams for location of parts named in the following directions. Always point the rifle in a safe direction away from you and others before adjusting it. Before adjusting or disassembling the rifle, always empty the air pressure completely by dry-firing it in a safe direction.

Safety Mechanism

Before proceeding, keep the rifle pointed in a safe direction at all times.
The cross-bolt safety is the small bolt located directly behind the trigger. This bolt is marked with a red, danger ring on its left side.
To engage the safety, push the bolt completely to the right (away from the magazine) so that red ring is not visible.
To release the safety, push the bolt to the left (toward the magazine) so that the red, danger ring appears. This allows the trigger to be pulled.
It is a good idea to set and release the safety several times before cocking the rifle to become familiar with this action. Point the rifle in a safe direction and pull the trigger each time to get the feel of the safety.

To Charge the Rifle

NOTE: USE COMPRESSED AIR ONLY. Other gases are dangerous and will void the warranty. Under no condition should this rifle be filled over 3,000 PSI. This is dangerous and will void the warranty.

The quick-fill dust cap is located at the end of the lower air reservoir tube below the barrel. DO NOT REMOVE IT! Simply rotate the cap in either direction until the female receptor port is exposed. After you finish re-filling the rifle, rotate the dust cap to close off the receptor port. Any dirt here can cause the rifle's valves to fail.

To Charge the Rifle with the Easyup 10 Hand Pump

The Easyup 10 Hand Pump is the most convenient method to charge your rifle. This sturdy pump is light to carry. It comes with a convenient carrying bag to accompany the rifle in the field or wherever you use it.
To ensure safe operation, you should refill the rifle without the distraction of others nearby, especially children or animals.
Be sure the rifle is unloaded.
Lay the rifle pointed in a safe direction next to the pump. The pump?s adapter probe should be within easy reach of the rifle?s adapter port.
Hand tighten the bleeder valve on the base of the pump.
Carefully insert the adapter probe from the pump hose into the rifle?s exposed receptor port, taking care not to snag the double ?O? ring on the edges of the dust cap.
Use silicone grease (sold in scuba diving stores) to dress the ?O? rings before each fill. Caution: Do not use other products that may have a low flash point. It is extremely dangerous to use such products in this high pressure area. This can lead to an explosion.
Pump the rifle twelve times. This should prime the hose enough to allow you to take an initial reading of the rifle?s current pressure level. If you hear air leaking, carefully check all connections. If you cannot resolve the air leaks, return the pump immediately to your dealer for inspection.
Begin pumping in 20 stroke sets, taking a reading each time of the pressure level and allowing at least a 2 minute cooling period in-between each set, especially when the pressure reaches 2500 p.s.i. (175 kg/cm2). Do not exceed 3,000 p.s.i.
The best technique to operate the pump is to use your upper body weight to push down on the pump, keeping your arms rigid. This method is less fatiguing than using only your arm strength to operate the pump.
Once the rifle has reached the desired pressure, open the bleeder valve on the base of the pump. You will hear a loud rush of air escape from the small hole in the base of the pump. You can now safely remove the pump?s probe adapter from the rifle?s receptor port.

To Charge the Rifle from a Scuba Tank

To ensure safe operation, you should refill the rifle without the distraction of others nearby, especially children or animals.
Be sure the rifle is unloaded.
Lay the rifle pointed in a safe direction next to the scuba tank. The adapter probe from the scuba tank should be within easy reach of the rifle?s adapter port.
Connect the adapter hose to the scuba tank (standard 3,000 p.s.i.)
Hand tighten the bleeder valve on hose.
Carefully insert the adapter probe from the other end of the hose into the rifle?s exposed receptor port, taking care not to snag the double ?O? ring on the edges of the dust cap.
Use silicone grease (sold in scuba diving stores) to dress the ?O? rings before each fill. Caution: Do not use other products that may have a low flash point. It is extremely dangerous to use such products in this high pressure area. This can lead to an explosion.
Open the main valve to allow a slow, controlled infusion of air. If you hear air leaking, carefully check all connections. If you cannot resolve the air leaks, return the hose adapter unit to your dealer for inspection.
Once the desired air pressure is reached, CLOSE THE MAIN VALVE on the scuba tank. Do not exceed 3,000 p.s.i.
OPEN THE BLEED VALVE. You will hear a loud rush of air escape from the bleeder valve.
You can now safely remove the hose?s probe adapter from the rifle?s receptor port.

Built-in Pressure Gauge

The rifle's pressure gauge is located at the end of the lower air reservoir tube.
The pressure gauge gives an approximate reading and can differ on each rifle. For example, charged with 2500 p.s.i., one built-in pressure gauge might show 19, while another rifle?s pressure gauge might show 21 with the same 2,500 p.s.i. charge.
Use the gauge as a convenient method to quickly check your power level for accurate shooting.

For example, note the pressure level on the gauge after you have fully charged the rifle (i.e. 3,000 p.s.i.).
Then check the gauge again when you first notice a change in the impact point due to the pressure dropping from firing a long series of shots.
This will allow you to anticipate from checking the level on the gauge when your point of impact will change due to the air pressure decreasing in the rifle.
Before long you will be able to interpret the rifle's gauge and judge how many shots are left before the rifle needs to be refilled.

Storing the Rifle Under Charge

This rifle can be stored under charge. However, it must be treated safely, as with any loaded gun. When not in use, we highly recommend you store this rifle in a lock rifle safe.

To Remove the Magazine

The magazine clip is located on the left side of the rifle?s receiver.
Before proceeding, keep the rifle pointed in a safe direction at all times.
To remove it from the rifle, push the bolt on the magazine towards the rear until the entire magazine slides back inside the receiver?s channel. You will feel slight pressure from the retaining spring pushing against the magazine.
Once the magazine is completely slid back, the front of it should lift away from the receiver and the magazine can be removed.

To Load the Magazine

Remove the magazine.
Before proceeding, keep the rifle pointed in a safe direction at all times.
Slide the magazine?s bolt back and push it down into the small vertical slot. You can easily enlarge this slot slightly for a better fit. A small sharp blade is handy for this task.
Hold the magazine vertically and drop the correct caliber pellets into the opening. Make sure the last loaded pellet does not protrude beyond the end of the magazine.
TILT THE MAGAZINE SAFELY AWAY FROM YOUR FACE WHILE REFILLING IT. If the bolt is accidentally released while you are filling it or at any time before it is replaced, it will snap forward and the loaded pellets will spring quickly out the front.
BE SURE THE PELLETS ARE POINTING UPWARD SO THEY WILL POINT FORWARD WHEN THE MAGAZINE IS REPLACED.
Place the magazine back in the receiver?s channel. Press back until the magazine clears the opening and can fit flush inside the receiver.
It is a good idea to work with an empty magazine, working it?s action and feeding and removing it from the receiver to become familiar with it.

To Cock the Rifle

Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety. This is very important. Pulling the trigger with the cocking lever open is very dangerous and voids the warranty.
Grasp the lever and push it down and forward until it stops. Use only enough force to move the lever until it stops. Great force is not necessary.
Return the lever to its closed position.

To Uncock the Rifle

Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety.
Remove the magazine clip.
Remember, point the rifle in a safety direction in case the rifle discharges accidentally.
Hold the lever securely and pull it slightly past its stopping point so that you feel some resistance.
Still holding the lever securely, release the safety and pull the trigger. You will feel the lever pull in the direction of the trigger. Gently ease the lever back into its closed position.
Point the rifle in a safe direction and pull the trigger to confirm the rifle is not in a firing mode.

Dry Firing the Rifle

This rifle is not harmed by dry firing it.

To Feed Pellets from the Magazine

Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety.
Insert the loaded magazine.
Release the magazine?s bolt from its slotted position and ease the bolt against the pellets.
Cock the rifle. You will hear and see the bolt move forward.
Return the lever to its closed position.
Release the safety. The rifle is ready to fire.
If the rifle fails to cock or the pellet fails to feed, do the following:

Point the rifle in a safety direction in case the rifle discharges accidentally.
Engage the safety.
Pull back on the magazine?s bolt and place it into the vertical slot.
Point the rifle up in a safe direction. The remaining pellets will slide back against the bolt and away from the chambering device.
Remove the magazine.
Remove any loose pellets in the chambering area.
Cock the rifle and discharge it in a safe direction. It is safe to dry fire this rifle.
This procedure avoids firing with more than one pellet accidentally chambered into the rifle?s barrel.

To Clean the Barrel

If the groups you shoot are off, the barrel probably needs cleaning.
Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety.
Remove the magazine.
Do not clean the barrel under charge. Empty the rifle?s air pressure completely by dry-firing it in a safe direction. It is best to clean the rifle when the rifle?s air pressure is already low so you won?t have much air to discharge.
Cock the rifle so that the grooved carrier retracts towards the left side of the receiver. DO NOT RETURN THE LEVER TO THE CLOSED POSITION. Leave it in it?s downward (half-cocked) position.
With the carrier retracted, this allows the tip of the cleaning rod to completely run through the end of the barrel.
Do not use wood doweling for a cleaning rod. A broken rod in the barrel is extremely difficult to remove. A coated metal rod designed for cleaning airgun works best.
Saturate the cloth patches with cleaning fluids or lubricants designed for airgun barrels.
Using the cleaning rod, push the saturated cloth patch through the muzzle until it exits at the other end.
There is no need to over-clean the barrel. Swab the barrel?s bore with cloth patches until the last one comes out clean.
Never use an abrasive cleaning agent or metal brush.

To Clear the Barrel of a Jammed Pellet(s)

Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety.
Remove the magazine.
Cock the rifle so that the grooved carrier retracts towards the left side of the receiver. DO NOT RETURN THE LEVER TO THE CLOSED POSITION. Leave it in it?s downward (half-cocked) position.
Use a metal rod designed for cleaning airguns to clear the barrel. Push it through from the muzzle to the other end. The jammed pellet should come out.

To Load Pellets One-at-a-Time

Before proceeding, keep the rifle pointed in a safe direction at all times.
Any length/weight pellet of the proper caliber can be loaded one-at-a-time into the rifle. There are two methods for loading a single pellet.
Engage the safety and remove the magazine before proceeding.
Method One:

Place the rifle on its side with the port side up towards you (magazine clip side down).
Rest the pellet in the groove of the pellet carrier. Be sure the pellet is pointed towards the barrel.
Half cock the rifle to retract the carrier along with the pellet.
Make sure the pellet is still facing forward. Tip the rifle slightly to allow the pellet to slide into the chamber.
Finish cocking the lever to its closed position.

Method Two:

Place the rifle on its side with the port side up towards you (magazine clip side down).
Half cock the rifle to retract the carrier along with the pellet.
Drop the pellet with its pointed side forward into the groove which has been retracted.
Push the pellet into the bore with a toothpick.
Finish cocking the lever to its closed position.

Adjusting The Power

A 12-stage, positive-stop power wheel is located under the rifle, just ahead of the trigger guard. It has a yellow triangle. Color-coded dots next to the wheel show the direction to rotate the wheel to increase or decrease velocity. The green dot is low power, the yellow is medium power and the red is high power.

To adjust the power wheel:

Before proceeding, keep the rifle pointed in a safe direction at all times.
Engage the safety.
Remove the magazine clip.
Check carefully to see that a pellet has not been chambered into the barrel. If you are in doubt, remove the magazine clip, aim the rifle in a safe direction, and fire the rifle with at least medium power to discharge the pellet.
Cock the rifle?s lever, leaving it in an open position (i.e. half-cocked). This makes turning the power wheel easier, especially in the lower power ranges.
Rotate the power wheel in the direction of the dots, to increase or decrease the power.
When you are finished, uncock the rifle or you can cock the rifle and discharge it in a safe direction.

Other comments regarding various power settings:

It is possible to double-load and jam more than one pellet with the rifle set in the low power range. Be sure a fired pellet has left the barrel before cocking the rifle for the next shot.
At 3,000 p.s.i., using .177 cal. Crosman Premiers (7.9 grain) pellets, the range of power is from a low of about 400 f.p.s. to a high of about 1.250 f.ps. Use a chronograph to establish the velocity relative to the power settings. However, shooting the rifle and simply noting the pellet?s performance may be all you may need.
It is possible to maintain a consistent velocity at low or medium settings even though air pressure has dropped enough to affect point of impact by turning the power wheel to a higher setting.

Adjusting The Rear Sight

Before proceeding, keep the rifle pointed in a safe direction at all times.

Move the rear sight in the same direction you wish to move the point of impact. Adjustment for windage (left and right) and elevation (up and down) is accomplished by the use of two separate sets of screws. The two screws in each set work in conjunction with each other. YOU WILL ALWAYS LOOSEN ONE SCREW BEFORE YOU TIGHTEN THE OTHER.

The two controlling screws for windage are located on both sides of the notched sight.

To move the sight and point of impact to the left:

Loosen the set screw on the left side and tighten the screw on the right side in the same small increment. As you tighten the screw on the right side, the rear sight will move left. It will only move as far as you had allowed when you loosened the left screw.
For example, turn the left screw one-half of a turn and then turn the right screw one-half of a turn or until it is snug (do not over-tighten).
When you are finished adjusting the windage, check to be sure the set screws on both sides are tightened snuggly.

To move the sight and point of impact to the right:

Loosen the set screw on the right side and tighten the screw on the left side in the same small increment. As you tighten the screw on the left side, the rear sight will move right. It will only move as far as you had allowed when you loosened the right screw.
For example, turn the right screw one-half of a turn and then turn the left screw one-half of a turn or until it is snug (do not over-tighten).
When you are finished adjusting the windage, check to be sure the set screws on both sides are tightened snuggly.

The two controlling screws for elevation are located ahead of the notched sight.

To move the point of impact higher:

Loosen the front screw and tighten the rear screw.
For example, turn the front screw one-half of a turn and then turn the rear screw one-half of a turn or until it is snug (do not over-tighten).

To move the point of impact lower:

Loosen the rear screw and tighten the front screw.
For example, turn the rear screw one-half of a turn and then turn the front screw one-half of a turn or until it is snug (do not over-tighten).

REMEMBER, DO NOT OVERTIGHTEN. First loosen the first screw and then tighten the other snuggly. The above two adjustments are not difficult to make. However, before proceeding, think out carefully what you are trying to accomplish and exercise good judgment and caution as you are making the adjustments.

Adjusting the Weight of the Trigger Pull

Caution: The factory setting for the trigger provides the best combination for safety and accurate shooting. We do not recommend adjusting this setting. Any trigger adjustments should be performed by a trained airgunsmith.

Before proceeding, keep the rifle pointed in a safe direction at all times.
Set the safety.
Remove the magazine clip.
Check carefully to see that a pellet has not been chambered into the barrel. If you are in doubt, remove the magazine clip, aim the rifle in a safe direction, and fire the rifle with at least medium power to discharge the pellet.
Turn the rifle upside down, across your knees or preferably on a gun rest. The adjustment screw is in a small opening on the sear arm, under the cocking lever, and just forward of the trigger.
Half cock the rifle (i.e. cocking lever in the open position) to expose the adjustment screw. Insert the supplied #50 hex wrench into the adjusting hex head screw. DO NOT TURN IT YET!
EXERT FORWARD PRESSURE ON THE LEVER. Now you can begin adjusting the trigger.
To lighten the trigger, turn the screw clockwise.
For a harder trigger pull, turn the screw counter-clockwise.
ADJUST IN TINY INCREMENTS. If the pull is too light, the rifle will not cock. Too much tightening or failing to keep pressure off the sear arm (i.e. not exerting forward pressure on the lever while adjusting) can break the adjustment mount.
Adjusting the trigger is trial and error. However, for a good starting point, back out the adjustment screw to the point at which the gun will not cock. Then, turn the screw in the opposite direction two turns.

REMEMBER: Keep pressure on the cocking lever at all times as you are turning the adjustment screw. Turn the screw in very small increments each time before testing the pull.

Adjust the Universal Pell-Stop to Accept a Different Size Pellet

Before proceeding, keep the rifle pointed in a safe direction at all times.
Set the safety.
Remove the magazine clip.
Check carefully to see that a pellet has not been chambered into the barrel. If you are in doubt, remove the magazine clip, aim the rifle in a safe direction, and fire the rifle with at least medium power to discharge the pellet.
Place the rifle across your knees or preferably on a gun rest.
The top of the receiver contains three screws. They are not interchangeable. They are different lengths. Replacing a screw in the wrong hole can cause clearance problems for the moving pieces inside the receiver?s cover:

Unscrew the forward screw (Part #48).
Unscrew the rear screw (Part #49).
Do not remove the middle screw.

REMEMBER THE EXACT HOLE EACH SCREW CAME FROM: SHORT SCREW FORWARD and LONG SCREW REAR.

Remove the receiver cover by lifting it upward and slightly towards the rear.
The pellet stop (Part #6 ? blue dye) is located on the left side of the rifle?s receiver, directly in front of the carrier.
Half-cock the rifle.
Notice how the loading gate (Part #33) moves to pick up the pellet. Insert the pellet your rifle is currently adjusted for in this mechanism. Pay close attention to the pellet as it is carried through the loading path. The new pellet will fit in the same manner.
Loosen the small Phillips screw (Part #7) and move the pell-stop (Part #6) forward or back until the rear of the pellet skirt is flush with the back of the gate and rim of the opening.
Remove the pellet and return the cocking lever to its closed position.
Retighten the Phillips screw (Part #7) without moving the pell-stop.
Replace the receiver cover.

Recommended lubricants

Silicone grease (solid in scuba diving stores) or Mineral Oil for the ?O? rings on the adapter probe.
Dow Corning Molykote 33 grease for the exposed metal parts inside the receiver cover.

Warranty

The Career 707 is covered by a one year limited warranty for the original retail purchaser from the verified date of purchase. This warranty provides genuine factory parts and factory-authorized labor necessary to repair factory defect of material or workmanship of this rifle.

The following is not covered by the warranty, including: 1) normal wear and tear, 2) customer abuse: unauthorized repairs, parts or modifications, 3) stock/wood or wood finish, 4) damage as a result of over-pressurization (over 3,000 p.s.i.), 5) damage as a result of filling rifle?s air reservoir with other than clean compressed air, 6) damage as a result of incorrect lubrication, and 7) loss or theft. This warranty is valid and available as long as parts are readily available for the rifle.

Warranty work inquiries should be sent to: Shin Sung Industries Company, 40 Westpark Drive, Daly City, CA 94015. Fax all inquiries to: (650) 992-0231. Do not send air rifles to this address. You will be directed to send your air rifle to an authorized repair center for warranty work.

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