Owner's Manual

8. Removing a Jammed Pellet
A jammed pellet is usually the result of trying to fire the airgun when the pressure is too low. Before firing the
airgun make certain there is sufficient pressure for proper operation, by making sure the gauge needle is
pointing to the area between 1000 and 3000 psi.
WARNING:
In this procedure you will put a cleaning rod down the barrel of a charged
airgun. It is extremely important that while you are doing this the airgun be “ON SAFE”, the
bolt remains in open position and that your finger be kept away from the trigger. Failure to
follow this warning may result in serious injury or death.
Point the airgun in a SAFE DIRECTION.•
Put the airgun “ON SAFE” (see section 2A.)•
Open the bolt by pushing the bolt handle up and •
pulling it all the way back until you hear two clicks.
With the bolt in the rearward position insert a •
ramrod of the proper size into the barrel (start at
the muzzle). (fig 8) The barrel could be damaged if the proper sized cleaning rod is not used.
NOTE: The bolt must be cocked and open for the jammed pellet to clear the breech when it is pushed out
by the ram rod.
Using the ramrod push the pellet into the pellet loading port (forward of the bolt), remove and discard •
the pellet. Do not reuse that pellet.
Point the airgun in a SAFE DIRECTION, close the action take “OFF SAFE” and fire. •
Put the airgun “ON SAFE” (see section 2A.)•
If you are not able to unjam your airgun by following this procedure, take no further action. Crosman •
Corporation or an Authorized Service Station will unjam your airgun. (no cost during the warranty period)
9. Maintaining Your Airgun
Apply Crosman silicone chamber oil (part number RMCOIL) on
the barrel o-ring every 3 months or 500 shots. Apply with a cot-
ton swab as shown in figure 9.
Apply a moly graphite EP grease to the sliding bolt mechanism
every 3 months or 500 shots.
Keep all petroleum-based lubricants away from the fill nipple.
They MUST NOT be introduced into the high pressure reservoir.
WARNING:
Use of petroleum-based lubricants in this area could result in an explosion
resulting in personal injury.
DO NOT MODIFY OR ALTER YOUR AIRGUN. Attempts to modify the airgun in any way inconsistent with
this manual may make your airgun unsafe to use, cause serious injury or death, and will void the warranty.
If you drop your airgun, visually check to see that it works properly before you use it again. If anything
seems changed, like a shorter or weaker trigger pull, this may mean worn out or broken parts. Call Cros-
man customer service for assistance before using your airgun again.
WARNING:
Do not attempt to repair the airgun or to disassemble to correct an over fill
or valve lock. Parts can fly from the airgun at dangerous speeds when it is disassembled
while pressurized.
10. Advanced Tuning Techniques
A. Adjusting the Trigger
The Marauder trigger assembly can be adjusted and customized but unless you are experienced in making
such adjustments, Crosman recommends that these adjustments to factory settings be made only by a
qualified gunsmith after reading all instructions. Adjusting the trigger assembly can result in a light trigger
pull, decreased sear engagement that could make the gun more susceptible to discharge when dropped or
jarred, or a non-functioning safety. Make only the adjustments identified in this manual.
NOTE: these adjustment features are for advanced shooters. Most shooters can use the settings
provided during manufacturing of the gun and should not need to make modifications.
The match grade trigger on your pellet air rifle is a two stage, fully adjustable unit. It has been factory •
set to an efficient setting that will suit most hunting and target uses. If you, as the owner, wish to alter
the factory settings you should do so only after reading the following instructions carefully.
Put the air rifle “ON SAFE”, remove the clip and keep the airgun pointed in a SAFE DIRECTION. •
Depressurize the airgun (see section 4)
Remove the stock screw (Fig 12) (using a 3/16” Allen wrench to separate the stock from the action.•
Do not remove the trigger guard screws as the trigger guard should remain with the stock.
8
Rod
Pellet
9
WARNING:
Adjustment of trigger screw (B) could inhibit proper function of the safety
lever (F). Thus, always check for full engagement and smooth function of the safety lever
upon completion of any changes to the trigger screw. If you are not sure if the safety is en-
gaging and operating properly, take your gun to an experienced gunsmith.
WARNING:
Adjustment to the trigger assembly could allow this airgun to fire if dropped
or jarred, with or without the safety engaged.
A. TRIGGER WEIGHT ADJUSTER B. FIRST STAGE ADJUSTER C. SECOND STAGE ADJUSTER
D. TRIGGER POSITION E. TRIGGER F. SAFETY LEVER G. LINK H. SEAR
Trigger Pull• Using a 1/8” Allen wrench turn the adjuster screw (A) clockwise to increase trigger pull
weight and counterclockwise to decrease trigger pull weight. This adjustment will not affect
sear engagement.
Trigger Position• Using a .050” Allen wrench the trigger position at rest can be adjusted. Turn screw (D)
clockwise to move the trigger back and counter clockwise to move the trigger forward. This adjustment
could affect sear engagement, and therefore could allow the gun to fire when dropped or jarred.
Trigger Stages• Using a .050” Allen wrench for adjustment of screws (B) and (C), changes can be made
to the position and length of first and second stages of the trigger motion. These adjustments could
affect sear engagement, and therefore could allow the gun to fire when dropped or jarred.
Screw (B) changes the first stage. Turning screw (B) clockwise will increase the length of the first •
stage and decrease the sear engagement. Turning counter clockwise will decrease the length of
the first stage and increase the sear engagement.
Screw (C) changes the second stage. Turning screw (C) clockwise will cause the second stage to •
occur sooner while turning counterclockwise will cause the second stage to occur later.
Adjustment of screws (B) and (C) should be done in harmony with each other as they work •
together to create the trigger’s profile. Start slowly to understand what each adjustment does and
its relationship to the other.
Trigger Maintenance• The trigger is assembled with a moly graphite EP grease that should last for years.
In the event your trigger becomes contaminated with debris and is not functioning properly, contact a
qualified gunsmith to examine for repair or maintenance.
After adjusting your trigger, always check that the trigger and safety are functioning properly. If you are •
not sure if the trigger or safety is operating properly, take your gun to an experienced gunsmith.
Re-insert the action into the stock, and replace and tighten the stock screw.•
B. Adjusting for Various Fill Pressures
The Marauder is designed to be tuned to work at various fill pressures from 2000 psi (138 bar) up •
to 3000 psi (207 bar). This is done by adjustment of the hammer spring preload and hammer stroke
length. In either case the adjustment changes the amount of energy the hammer generates when
striking the valve. Higher fill pressure require more hammer energy while lower fill pressures require less
hammer energy. It is advised to always record your settings when tuning your airgun.
(See Page 10)
The Marauder has been factory set to an efficient fill pressure that will suit most hunting and target •
uses. If you, as the owner, wish to alter the factory settings you should do so only after reading the fol-
lowing instructions carefully.
Hammer Spring Pre-load adjuster•
Put the air rifle “ON SAFE” (see section 2A), remove the clip and keep the airgun pointed in a SAFE •
DIRECTION. Remember that the airgun is pressurized and make only the adjustments identified
in this manual.
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