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How to Assemble a Riley Hopkins 150 Screen Printing Press

How to Assemble a Riley Hopkins 150 Screen Printing Press  | Screenprinting.com

Jacelyn Wedman |

So your Riley Hopkins 150 screen printing press just arrived at your front door. First, congratulations! The only thing left to do is assemble your press and get printing. Right now, it probably just looks like a lot of parts. Daunting, right? Don’t worry. With this walkthrough, you’ll be able to set up your press with ease and get printing in no time. 

WHAT YOU’LL NEED

The package comes with all the press parts you’ll need. You just need a couple of tools to put everything together. Grab two 9/16” wrenches, two ½” wrenches, one Phillips screwdriver, and a tape measure or ruler. 

WHAT’S IN THE BOX?

The Riley Hopkins 150 press requires a bit more assembly than bigger presses. Make sure that everything is there before you start assembling the press. If you find that you’re missing parts, contact us! We’re more than happy to send you the part you’re missing. 

Here’s what’s in the box: 

  • Main Press Core Assembly 
  • Color Arm With Hinge Bushings
  • 16” x 16” Wood Platen Assembly
  • Screen Clamp
  • Press Mounting Foot
  • Left Hand Off-Contact Bracket
  • Color Arm Spring Plate
  • Right Hand Off-Contact Bracket
  • Hardware Box

A man unboxing a press and laying the parts on a screen cart

ASSEMBLE YOUR PRESS

Now that everything is accounted for, you’re probably wondering where to start. Let’s jump in and walk through how to assemble your 150. Take your time and make sure to set your press up right the first time.

STEP 1: ATTACH MOUNTING FEET

Attach the mounting feet to the main base assembly. One ½” wrench is required.

Hands attach mounting foot to a Riley Hopkins 150 press

STEP 2: MOUNT THE BASE

Mount the press base to the preferred tabletop surface. This can be anything from a press cart to a wooden countertop. In the video, the press is mounted to a press cart/screen storage unit. Place the front foot a maximum of 3” away from the edge of the tabletop surface for maximum platen adjustability. Use the Phillips head screwdriver to accomplish this.

Hands hold a drill and mount the base of a press to the tabletop

STEP 3: INSTALL GATE HARDWARE

Install the gate hardware. Do not fully tighten the nylon side registration bolts at this step. Two 9/16” wrenches are required for this step. Set the center bolt 2.5” from the top of the bolt to the top of the base. Lock the jam nut to keep in place.

Hands install gate hardware to a printing press

STEP 4: INSTALL HINGE HARDWARE

Install the hinge hardware in the center of the three hinge pocket hole locations. Tighten the hardware with two 9/16” wrenches to the point where there is some resistance but can still move up and down within the hinge pocket. 

Two hands hold the hinge hardware of a printing press

STEP 5: ATTACH COLOR ARMS

Attach the color arm spring plate to the color arm bar. Ensure that the spring plate is square with the color arm bar before final tightening. Two ½” wrenches are required. If you purchased a Riley Hopkins 150 4x1, repeat steps 5-15 for all other color arms. 

A hand uses a wrench to tighten the color arm of a press

STEP 6: INSTALL LOWER PIVOT BOLT

Install the lower pivot bolt into the off-contact brackets and the color arm lower hole. Do not fully tighten the hardware at this step.

A hand holds a pivot bolt and prepares to attach it to the press

STEP 7: UPPER OFF-CONTACT

Install the upper off-contact bolt and retaining clip. This step may require you to rotate the lower bolt previously installed in order to fully seat the clip to the off contact bracket. One 9/16 wrench is required for this step. 

A hand holds the off contact bolt and retaining pin on the press

STEP 8: OFF-CONTACT BRACKETS

Install the off-contact bracket bolts into the screen clamp. Fully tighten the hardware at this step. One 9/16” wrench is required for this step.

A hand screws in off-contact bracket bolts into the screen clamp

STEP 9: ATTACH SCREEN CLAMP

Attach the screen clamp onto the slotted off-contact brackets. This will be your up-down adjustment for printing after final assembly. One 9/16” wrench is required for this step.

Two hands attach the screen clamp onto the arm of a printing press

STEP 10: INSTALL SCREEN CLAMP KNOBS

Install the screen clamp knobs into the screen clamp. Make sure the knob stud does not protrude beyond the lower clamping conical washer. Lock the nut together in opposing directions using two 9/16” wrenches in order to fix the clamping nuts to the stud.

Screen clamp knobs in the screen clamp

STEP 11: INSTALL BUMPER BOLT ASSEMBLY AND PRINT HEAD LIFTING SPRINGS

Install the print head lifting springs. The hooks must be facing upward. Once the hooks are both installed, pull the printhead assembly down into the registration gate.

EXTREME FORCE. PROCEED WITH CAUTION DURING THIS STEP.

STEP 12: INSTALL UPPER BUMPER BOLT ASSEMBLY

Install the upper bumper bolt assembly and rubber stop. Do not overtighten. Lightly snug nut to hinging pocket. Two 9/16 wrenches are required for this step.

PINCH POINT. PROCEED WITH CAUTION DURING THIS STEP.

A hand holds a screen spring in the upright position

STEP 13: INSTALL LOWER SAFETY STOP BOLT

Install the lower safety stop bolt hardware. Make sure to install with the printhead in the up position. Do not overtighten, lightly snug the nut into the hinging pocket. Two 9/16 wrenches are required for this step.

The bumper bolt of a screen printing press

STEP 14: INSTALL PLATEN ASSEMBLY

Install the platen assembly to the station arm. Loosen the knobs before installation. The platen assembly is adjustable front to back to help set the desired image placement on the garment. Lock it in place with the three locking knobs tightly during print cycles.

A platen is installed to the Riley Hopkins 150 press

STEP 15: SET UP SCREEN

Set up the screen. First, lock the screen in place with the screen clamping knobs (1). It is ideal to fully seat the screen into the back of the screen clamp as shown. Next, loosen the off-contact nuts (2) with a 9/16 wrench. 

Set the desired off-contact position and retighten the nuts. Lastly, set the tilt angle of the screen by loosening the tilt locking nuts (3). Make sure to fully lock down the tilt hardware to avoid movement during printing.

A diagram of the Riley Hopkins 150 Press

And that’s that! You have a fully-assembled, functioning screen printing press. Take a moment to admire your hard work before beginning your print hustle.