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Cleaning, Lubrication, and Maintenance

Overview

Routine maintenance is essential to keeping your Model 887 firearm in top condition for years to come.

CLEANING, LUBRICATION AND MAINTENANCE 

WARNING! Before cleaning, make sure your shotgun is completely unloaded (both the chamber and the magazine) and engage the safety mechanism in the “ON” or "SAFE" position.

WARNING! After each use, follow the lubrication and maintenance directions in this Manual. If the firearm is immersed in water, it must be thoroughly cleaned and lubricated as soon as possible. In case of saltwater immersion, first flush all parts with fresh water, then dry, clean and lubricate the firearm. If the firearm does not function properly, have it checked and corrected by a competent gunsmith before further use. Failure to follow these instructions may lead to firearm malfunctions which could result in serious personal injuries or death. 

NOTE: The chamber and bore should be cleaned before loading and firing the firearm the first time. 

Lubrication:

Over-lubrication should be avoided at all times. A light application of RemTM Oil helps to prevent rusting. See note below.

WARNING! The use of a non-recommended lubricant could adversely affect the function and safe operation of your shotgun. Failure to properly maintain your shotgun can not only damage your firearm, it can expose you and others to unnecessary risks of personal injury or death.

When the firearm is to be stored, it should be carefully cleaned and thoroughly oiled. Outside metal surfaces should be wiped with RemTM Oil occasionally.

When the firearm is to be reused, all excess lubrication must be removed. The chamber and bore must be thoroughly wiped dry.

For safe and dependable operation of your shotgun, the barrel and action must be cleaned periodically.
NOTE: Remington RemTM
Oil is available from your local dealer. If your dealer is out of stock, ask him to order RemTM Oil from his Remington Distributor. 

To Disassemble The Firearm For Cleaning:

CAUTION: The Model 887TM NitroMagTM shotgun should not be disassembled beyond what is described in this manual, except by the factory or a REMINGTON® Authorized Repair Center.

WARNING! Unload the shotgun before cleaning. Look into the ejection port and visually check the chamber, loading port, and magazine to make sure there are no shells in the firearm. Always wear eye protection when disassembling and reassembling the firearm. 

To Remove the Barrel:

  1. Point the firearm in a safe direction.
  2. Engage the safety by placing the safety mechanism in the "ON" or "SAFE" position. The Red Band Will NOT Be Visible.
  3. With the bolt open, look into the ejection port and visually check the chamber, carrier, and magazine to make sure the firearm is completely unloaded.
  4. Slide the fore-end forward approximately halfway.
  5. Remove the magazine cap by turning counterclockwise.
  6. Hold the barrel above the barrel ring and pull the barrel from the receiver. See Picture 14.
    model887_14.jpg 

To Remove the Trigger Assembly:

  1. Tap out the front and rear trigger assembly pins with a drive punch. See Picture 15.
    model887_15.jpg

  2. Remove the trigger assembly from the receiver by pulling downward. See Picture 16.
    model887_16.jpg 

To Remove the Bolt Slide Assembly:

  1. With the barrel and trigger assembly removed, move the fore-end forward until bolt assembly is free of receiver. See Picture 17.
    model887_17.jpg
  2. Remove bolt assembly from action bars by lifting bolt assembly upward.​​
  3. Remove port cover from the bolt assembly by lifting port cover over the port cover guide pin then lift upward. See Picture 18.
    model887_18.jpg

To Clean Barrel:

WARNING! The use of a non recommended lubricant or cleaner could adversely affect the function and safe operation of your shotgun.

  1. Use the instructions and equipment provided in a quality cleaning kit such as a Remington® Cleaning Kit. For recommendations, see your dealer or a Remington® Authorized Gunsmith.
  2. Saturate cleaning patch with Brite BoreTM or equivalent.model887_nonumber.jpg
  3. Attach the patch to a cleaning rod tip.
  4. Pass the patch through bore from the chamber end to the muzzle several times removing loose residue and fouling.
  5. Select the correct caliber cleaning brush and attach a brush to the cleaning rod.
  6. Spray bore brush with Brite Bore.
  7. Push the cleaning rod through the barrel several times.
  8. Remove the brush from the rod and attach a tip with a cleaning patch.
  9. Push the cleaning patch through the bore.
  10. Repeat several times using a new cleaning patch each time until the patch is removed from the barrel without fouling residue.
  11. Remove all shooting residue from the lock notch in barrel with RemTM Action Cleaner. See Picture 19.
    model887_19.jpg 
  12. ​Push a clean patch saturated with RemTM Oil through the barrel.
  13. Push a clean dry patch through the barrel to remove excess lubricant.
  14. Apply a light application of RemTM Oil to the outside of the barrel extension with a soft clean cloth. 

WARNING! After cleaning, make sure the barrel is free of obstructions. 

To Clean the Choke Tube:

WARNING! The use of a non recommended lubricant or cleaner could adversely affect the function and safe operation of your shotgun.

  1. Remove the choke tube from the barrel. See “To Change the Choke Tube”. 
  1. Clean the choke tube, including the threads, with RemTM Action Cleaner and wipe clean.

  2. When dry, apply RemTM Oil to the choke tube threads and reattach to barrel. See “To Change the Choke Tube”.

To Clean the Bolt Assembly:

WARNING! The use of a non recommended lubricant or cleaner could adversely affect the function and safe operation of your shotgun.

  1. Spray the bolt assembly and bolt head using RemTM Action Cleaner and brush. See Picture 20.
    model887_20.jpg
  2. Wipe clean and let dry before applying a light application of RemTM Oil to the bolt assembly and bolt head. 

To Clean the Trigger Assembly:

WARNING! The use of a non-recommended lubricant could adversely affect the function and safe operation of your shotgun.

  1. Thoroughly spray RemTM Action Cleaner inside the trigger assembly where specified in Picture 21. Air dry or use compressed air to thoroughly dry the trigger assembly.

  2. Apply a light application of RemTM Oil to the areas specified in Picture 21.
    model887_21.jpg

To Clean the Receiver Assembly:

WARNING! The use of a non recommended lubricant or cleaner could adversely affect the function and safe operation of your shotgun.

  1. Thoroughly spray and brush all components inside the receiver using RemTM Action Cleaner.
  2. Air dry or use compressed air to thoroughly dry the receiver assembly.
  3. Spray the outside of the magazine tube with RemTM Action Cleaner and wipe clean. 
  4. Wipe with a clean cloth and air dry or use compressed air to thoroughly dry the magazine tube.
  5. Apply a light application of RemTM Oil to the outside of the magazine tube and metal surfaces inside the receiver. 

To Reassemble The Firearm:

WARNING! Visually check the chamber, ejection port, and magazine to make sure that the shotgun is completely unloaded and there are no shot shells anywhere in the shotgun.

  1. With the port cover guide slot on the right side of the bolt assembly. Place the port cover over the port cover guide pin on the bolt assembly then snap the top of the port cover into place. See Picture 18.
  2. Place Fore-end onto magazine tube with action bars bolt cuts in the up position as shown in Picture 22.
    model887_22.jpg
  3. While holding the action bars with one hand, place the bolt assembly onto action bars with bolt head oriented toward the front of the receiver.
  4. Align the action bars and bolt assembly with the right and left action rails in the receiver.
  5. Move the fore-end rearward, sliding the bolt assembly halfway rearward.
  6. Insert the barrel into the receiver and align the barrel ring over the magazine tube. See Picture 7.
  7. Replace the magazine cap on top of the magazine. Secure by turning clockwise until hand tight. Do not over tighten.
  8. Insert the trigger assembly by aligning the front notch into receiver.See Picture 23.
    model887_23.jpg
  9. Align the trigger assembly with the mounting holes in the receiver by pressing bolt release while holding the Trigger Assemble in the receiver, move the fore-end fully rearward, then move fore-end fully forward.
  10. ​Once the action is forward and the trigger assembly mounting holes are aligned with receiver, tap in the longer front trigger plate pin, then tap the shorter rear trigger assembly pin. See picture 24
    model887_24.jpg 
  11. While pressing the bolt release, open the action by pulling the fore-end fully rearward. 

To Function Test Firearm:

When the firearm is reassembled, a short function test should be conducted to ensure proper operation before loading or dis charging the firearm. If firearm does not function as described in any of the Function Test then the firearm should be reassembled and function tested again. If the firearm fails the function test again, then the firearm should be sent to a REMINGTON® Authorized Repair Center or call:

Remington’s customer service number, 1-800-243-9700, Mon.-Fri., 9:00AM-5:00PM Eastern time.

WARNING! Completely unload the shotgun before Function Testing. Look into the ejection port and visually check the chamber, carrier, and magazine to make sure there are no shells in the firearm. Always wear eye protection when handling the firearm. 

  1. Point the shotgun in a safe direction.

  2. Engage the safety by placing the safety mechanism in the “ON” or “SAFE" position. The Red Band Will NOT Be Visible.

  3. Press the bolt release and open the bolt by pulling the fore-end rearward.

  4. Look into the ejection port, visually check the chamber, carrier, and magazine to make sure the shotgun is completely unloaded.

  5. Close the action by moving the fore-end fully forward.

  6. Without activating the bolt release, try to pull the fore-end rearward. The action should be locked into position and should not open.

  7. Press the bolt release and open the bolt by pulling the fore-end rearward. The action should open without binding.

  8. Close the action by moving the fore-end fully forward. The action should move freely and lock into the closed position.

  9. Engage the safety by placing the safety mechanism in the “ON” or “SAFE” position. The Red Band Will NOT Be Visible.

  10. Try to pull the trigger. The trigger should not move and the hammer should not fall.

  11. Disengage the safety by placing the safety mechanism in the “OFF” or “FIRE” position.

  12. Pull the trigger. The hammer should fall and the bolt should unlock.

  13. Engage the safety by placing the safety mechanism in the “ON” or “SAFE” position. The Red Band Will NOT Be Visible.

  14. Move the fore-end rearward. The bolt should be unlocked and move freely rearward. 

WARNING! This firearm was designed and manufactured to properly perform with the original parts. It is the user’s responsibility to insure all replaced parts are correctly installed and that neither replacements nor original components are altered or changed. Your firearm has many components that must work
and relate correctly to other components for safe and accurate operation. Incorrectly assembling the firearm or with modified parts can result in damage to your firearm, or personal injury or death to you or others. Remington recommends all component replacements be performed by a Remington®
Authorized Repair Center. If a repair or component replacement was not completed by a Remington® Authorized Repair Center we recommend that you have your firearm checked by an Authorized Repair Center. See page 22, for a Remington® Authorized Repair Center nearest you.

THE GUN OWNER and USER MUST ACCEPT FULL RESPONSIBILITY FOR THE CORRECT REASSEMBLY AND FUNCTIONING OF THE FIREARM AFTER DISASSEMBLY OR REPLACEMENT OF PARTS.

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