Crosman 1720T User Manual
Model 1720T
.177 Caliber Pre-Charged
Pneumatic Airgun
OWNER’S MANUAL
READ ALL INSTRUCTIONS AND WARNINGS IN
THIS MANUAL BEFORE USING THIS AIRGUN
Crosman Corporation
7629 Routes 5 & 20
Bloomeld, NY 14469 USA
www.crosman.com
1-800-7AIRGUN (724-7486)
Made in USA with some foreign components 1720T-515
WARNING:
cause serious injury or death. May be dangerous up to 450 yards (411 m).
WARNING:
crime. Police and others may think it is a rearm. Do not change the coloration and markings to make it
look more like a rearm. That is dangerous and may be a crime.
This air pistol has been classied as a match precision air pistol. Because it is considered a special purpose
air pistol, it is exempt from specic types of testing. Specically this air pistol was NOT subjected to the trigger
pull or drop test requirements.
CAUTION: The adjustable trigger can be adjusted below 3 lbs, and when it is adjusted below 3 lbs, the air
pistol could re when dropped
YOU AND OTHERS WITH YOU SHOULD ALWAYS WEAR SHOOTING GLASSES TO PROTECT YOUR EYES.
WARNING:
and birth defects (and other reproductive harm).
WARNING:
which can cause a re or explosion that may result in serious injury or death.
Read this owner’s manual completely. And remember that an airgun is not a toy. Always carefully follow the
safety instructions in this owner’s manual and keep the manual in a safe place for future use. If you have any
questions regarding the operation of your new airgun contact Crosman at 1-800-724-7486.
Not a toy. This airgun is recommended for adult use only. Misuse or careless use may
Do not brandish or display this airgun in public—it may confuse people and may be a
BUYER AND USER HAVE THE DUTY TO OBEY ALL LAWS ABOUT THE USE AND
OWNERSHIP OF THIS AIRGUN.
THIS AIRGUN IS INTENDED FOR USE BY ADULTS ONLY
This product contains a chemical known to the state of California to cause cancer
Use only compressed air in this airgun. Use no other gasses—including oxygen,
1. Learning the Parts of your New Airgun
Learning the names and parts of your new airgun helps you understand your owner’s manual.
A. Trigger Over travel screw
B. Bolt handle
C. Breech
D. Barrel
E. Muzzle
F. Protective cap
G. Grip
H. Trigger guard
I. Trigger
J. Safety
K. Pressure gauge
L. Fill nipple
M. Pressure Reservoir
2. Operating the Safety
A. To Put the Air Pistol “ON SAFE:”
• Locate the safety directly in back of the trigger.
• Push the safety from the left side all the way in (Fig. 2). The safety is not “ON
SAFE” unless it is pushed all the way in and the RED ring around the left side
of the safety is NOT showing.
Like all mechanical devices, an air pistol safety can fail. Even when the safety is
“ON SAFE”, you should continue to handle the air pistol safely.
NEVER point the air pistol at any person. NEVER point the air pistol at anything
you do not intend to shoot
B.To Take the Air Pistol “OFF SAFE”:
• Push the safety from the right side all the way in.
• The air pistol is ready to re when “OFF SAFE”. When you can see the RED line on the left side of the
safety, the air pistol is “OFF SAFE” and can be red.
3. Pressurizing the Airgun
PUSH
SAFE
Fig. 2
WARNING:
which can cause a re or explosion that may result in serious injury or death.
A. Pressurizing (Filling) the Airgun with a Hand Pump
• Be sure to wear eye protection.
• Make sure the airgun is unloaded and not cocked. (See section 4
for instructions on unloading and un-cocking.)
• Read all instructions with your hand pump so you are familiar with
its operation. Use only a pump designed for lling a pre-charged
airgun and outtted with a Foster #12FS or #12FSS quick disconnect tting. Do not use a standard air compressor or bicycle pump.
• Put the airgun “ON SAFE” (see section 2A) and point in a SAFE
DIRECTION.
• Pull off the protective cap that covers the ll nipple on the airgun.
• Connect the quick-disconnect tting on the hand pump hose to the
ll nipple (g. 3.) by
º Pulling back and holding the knurled ring
º Connecting the tting over the ll nipple.
º Releasing the knurled ring and push it forward to lock the tting on to the ll
nipple.
• Make certain the bleed valve on the hand pump is fully closed (tighten in a clockwise direction) (g.4).
• Start pumping and continue until the gauge needles on your pump and on the airgun are between 2500 psi and 3000 psi depending on your desired tune. DO NOT ll the air gun to more
than 3000 psi (207 bar). See “Overll” information (section 3C).
WARNING:
injury from hose whip as a result of pressure in the ll hose.
• Open the bleed screw on the pump base rapidly in a counter-clockwise direction to COMPLETELY bleed
the hose. You must bleed the ll hose COMPLETELY to avoid hose whip from pressure in the ll hose.
• Disconnect the pump from the ll nipple on the gun
• Replace the cap over the ll nipple. Always keep the ll nipple capped to eliminate the possibility of dirt
entering the check valve.
Use only compressed air in this airgun. Use no other gasses—including oxygen,
Fig. 3
Disconnecting the ll hose from the airgun without bleeding the air rst may result in
2
Fig. 4
B. Pressurizing (Filling) the Airgun with a High Pressure Tank
The 1720T may be lled from a high pressure tank (bottle). Scuba style tanks designed for 3000 psi pressures
and above are best suited for the task as they can ll the 1720T many times to 2500-3000 psi. For scuba
tanks use the Crosman FAH003 Scuba Yoke Adapter for K style valves or the FAH004 DIN style Adapter for
DIN style valves.
• Be sure to wear eye protection.
• Make sure the airgun is unloaded and not cocked.
• (See section 4 for instructions on unloading and un-cocking.)
• Read all instructions with your tank so you are familiar with its operation.
• Put the airgun “ON SAFE” (see section 2A).
• Point the airgun in a SAFE DIRECTION.
• Remove the cap that covers the ll nipple on the airgun.
• Connect the quick-disconnect tting on the adaptor’s hose to the ll nipple (g. 3).
• Slowly open the valve on your tank and start lling the gun SLOWLY. Filling too quickly will cause heat
buildup that can affect accuracy of the ll pressure.
• Watch the gauges on the airgun and your tank (if equipped) until the desired pressure is reached (2500 3000 psi) DO NOT ll the airgun to more than 3000 psi. See “Overll” information in section 3C.
• Turn the valve on your tank off when the desired ll pressure is reached.
• Follow instructions with your tank and hose to BLEED the ll hose COMPLETELY to avoid hose whip from
pressure in the ll hose
• Disconnect the tank’s ll hose from the ll nipple on the airgun.
• Replace the cap over the ll nipple. Always keep the ll nipple capped to eliminate the possibility of dirt
entering the check valve.
TIP: If your airgun is being lled from completely empty (zero pressure) the tension of the hammer pressing
against the valve may keep the valve open which causes air to leak down the barrel. This is most likely to happen with a gun where the hammer spring is adjusted to a high rate. In the event this occurs try cocking the
bolt and leaving it in the rear (fully open) position to eliminate the force on the valve allowing it to close. Always
make certain the airgun is not loaded and there is not a pellet in the chamber.
TIP: Pressurizing the airgun causes heat which in turn will register a higher pressure. Always ll slowly and
allow the reservoir to cool to obtain the most accurate ll pressure. Topping off the reservoir after it is allowed
to cool is recommended.
C. Overll:
• Over lling beyond the “as tuned” best ll pressure does not improve performance. It lessens performance
and may cause the valve to lock. For instance a gun tuned for best performance at 2,500 psi may partially
valve lock at 3000 psi. If you discover that the airgun has been over lled, try to dry re the airgun (cock
and shoot with no pellet loaded) in a SAFE DIRECTION until the pressure on your airgun drops to the
pressure where your gun was tuned to perform best.
• If the airgun will not discharge air with each shot, the valve may be completely pressure locked and
require use of the degassing tool PCPDT4 available at www.crosman.com , or contact Crosman Customer Service at 1-800-724-7486.
D. Depressurizing the Airgun
• Keep the pistol pointed in a SAFE DIRECTION.
• Remove all the air from your pistol by repeatedly cocking and dry-ring with the pistol pointed in a SAFE
DIRECTION) until the pressure gauge on your airgun shows no pressure on the gauge and air cannot be
heard when the gun is dry red.
• Put the airgun “ON SAFE”.
• If the pressure in the gun cannot be relieved using the dry ring process it may indicate a valve lock condition and require use of the degassing tool PCPDT4 available at www.crosman.com , or contact Crosman
Customer Service at 1-800-724-7486.
4. Cocking, Loading, Unloading and Uncocking the Airgun
WARNING:
ammunition can cause injury to you or damage to the airgun.
A. Cocking and Loading Pellets
• Put the airgun “ON SAFE” (see section 2A) and point in a SAFE DIRECTION.
• Be sure your airgun is properly pressurized (see section 3).
• Open the bolt by pushing the bolt handle up and pulling it all the way back. With the bolt in the rearward
position, place one pellet, nose rst, into the loading tray. This is a single shot pellet airgun. Load no more
than one pellet at a time.
• Lightly push the pellet into the barrel by closing the bolt and pushing the bolt handle down to lock. DO
NOT jam the bolt forward. This will damage your airgun.
• Be sure the bolt is closed and locked before ring. If it is not closed and fully locked, the pellet may not be
discharged.
Use .177 caliber pellets only in your airgun. Never reuse ammunition. Use of any other
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