Thank you for buying from RK Drums! We appreciate your business!

At this time we do only provide brief assembly instructions that ship with the unit, but please refer to the website detailed assembly guide for visual step-by-step instructions, and setup docs.

Your Do-It-Yourself Kit should contain

-Mount Plate

-Base Plate

-Two Jaw couplers and Buna-N Ring (fits between them)


-Two Muffler Clamps 1 ½” (Discontinued: Most grills no longer need these).

-Four 10/32 Screws, 4 10/32 washers

-Four 5/16 bolts with washers and nuts.

-Gear Motor


(All remaining parts necessary to complete the build that are included in the Everything Kit can be purchased at the local Hardware Store or online, we just save you from having to go do it all.)

Your Everything Kit Should Contain

-Cover plate.

-15A 120V Switch with 3 terminals.


-Cable Connector/Retainer

-Mount Plate

-Base Plate

-Power Cord, with ground.

-Connecting Wire

-4 Wire Connectors

-Two Jaw couplers and Buna-N Ring (fits between them)



-Heavy Duty Thermometer

-Two Muffler Clamps 1 ½” (Discontinued: Most grills no longer need these).

-Six 10/32 Screws, 4 10/32 washers

-Four 5/16 bolts with washers and nuts.

-Gear Motor

A rough guide is as follows:

Please refer to the assembly guide on the website for a detailed pictorial on how everything is assembled.

Here are the quick build instructions:

  1. Remove your side grill tray on the side of your (UNFAVORED HAND). If you are right-handed remove the left tray and vice-versa, or if your tray is non-removeable, then bolt your base plate to the tray (See assembly guide on the website, skip to step 3)
  2. Place the base plate on the grill support bars and secure with the muffler clamps.(leave loose for now)
  3. Bolt your motor mount plate to the base plate with the 5/16 bolts, nuts and washers.
  4. Place the motor onto the motor mount plate and affix with (4) 10/32 screws. (leave loose for now)
  5. Place the 3/8” Lovejoy coupler onto the motor shaft and tighten with an allen wrench. Place the fan onto the motor if included.=.
  6. Place the 7/16” or opposing Lovejoy coupler onto the end of your rotisserie rod and secure.
  7. Your rotisserie (purchased separately at this time) should have come with (2) splined collars for cooking chicken.       Remove these splines with a hacksaw and use these collars to secure the drum laterally onto the rod.       (We may change the drum design in the future so this step can be avoided, see the website for details)       Insert one collar, then the drum and secure the drum with the other collar.
  8. Attach your bearing bracket to the FAVORED hand side of your grill.If you are right handed, attach to the right side.       And if left, attach to the left side.
  9. Insert the bearing onto the rod, and then the handle.
  10. Level the drum and tighten everything down.
  11. Attach the switchbox and switch and cover to the baseplate with the remaining 10/32 screws.
  12. Wire the motor to the switch as follows.       The switch has two screws on one side and one on the other. Knock the round metal cover off of the switch box and place your power cord through that hole. Attach the ground green wire to the side of the switch with the single screw (pin the wire down under the screw). Attach the black or white cord wire to one of the terminals (the side with two screws) along with one of the motor wires. Attach the other cord wire to the last terminal along with the remaining motor wire. Test.       The motor should turn on and off.

Please see the following web pages for more instructions.

Assembly Guide

I will also welcome your phone call or email if you have any questions during the assembly. I will even walk you through your first coffee roast if you wish.

I want to make sure you get years of great service from your new roaster.

Please don’t hesitate to contact me for anything.

Kind Regards,

Shane Lewis

RK Drums


Roasting Profiles for small loads up to 2 lbs

  1. 1.       Preheat grill to 470 degrees, give it time to stabilize
  2. 2.       Load a cold drum with greens
  3. 3.       Install the drum in the grill, and close lid, working as quickly as possible, so as not to loose too much heat.
  4. 4.       The grill will drop to aboutto 420 degrees. It should come back up to temp in about 6 to 7 min.
  5. 5.       Adjust if you have to but be patient. Keep the grill at 445 to 455
  6. 6.       First crack should start between 11 min and 13 min depending on the amount of greens.
  7. 7.       I leave the grill at 465 to 470
  8. 8.        Second crack should start between 12 and 15 min. depending on the amount of green you are roasting
  9. 9.       Just as second starts, I cut the heat back to low and let it coast to desired finish. Remember it will take a little time to stop the motor, pull the pin (I use needle nose pliers), get the drum out of the heat, open the door and dump the beans into the cooling tray, so stop short of your target about 15 to 20 sec. to hit the target roast. Make sure you use gloves that can with stand 500 degrees, for about 20 to 30 sec.

If a city of light full city roast is desired dump the beans before 2nd crack occurs, or just a snap or two into 2nd crack

It is good idea to have a fan and a perforated or screened cooling tray, to cool the beans and stop the roasting process.

You may have to adjust your temps, each grill is different, and smaller loads tend to roast faster. I found that a grill that is to hot will cause fast roast times and uneven roasts.


Use protection to prevent burns.



Roasting profile for 3 to 4 lbs


Roasting larger amounts of greens will need more heat

  1. Preheat grill to 525 degrees
  2. Install cool drum and greens, as quickly as possible to avoid loosing too much heat
  3. The grill temp will drop to about 460
  4. I leave the grill alone, let it come back up to 525 degrees.
  5. Try to keep it between 515 and 530 degrees
  6. First crack should happen around 14 to 16 min.
  7. Second crack should happen at 17 to 18 min.
  8. As second starts lower heat to low and let it coast to finish
  9. Be prepared for lots of smoke, and very hot beans


Remember each grill will perform differently, and you may have to adjust your grill accordingly.

City or light full city roast should be stopped after first crack or a snap or two into second crack.

You will have to stop short of your target roast, 15 to 20 seconds, to allow for the time it takes to stop the motor, raise the hood, remove the drum, and dump the beans in a suitable cooling tray. Its suggested using a fan and a perforated or screen cooling tray.

I use needle nose pliers to pull the clip.

   CAUTION The drum and beans will be hot and can cause burns .

Always use protective gloves that will withstand 500 degrees for 30 secs. or more.