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For Animated Instructions on a Van Mark Brake..
For Animated Instructions on Any Other Brake..
Brake Install-Click Here
Play step by step installation animation of Trim-A-Gutter™ onto any Van Mark brake! For all other brakes, use the animation
along with the steps for your brake as
seen below.

 UniLegs Install-Click Here
to play step by step installation animation of Trim-A-Gutter™ tool onto optional UniLegs. You can also use the animation along with the steps outlined below.
Tool Setup-All Van Mark Brakes
Use this diagram as a reference for parts/hardware called out in these pages, though each part may only be called out once in the step. Tools needed: Phillips screwdriver, slotted screwdriver and a 7/16 wrench, or socket wrench. Note: Whether mounting your Trim-A-Gutter™ to a Van Mark brake or mounting on optional UniLegs™ for use with any brake, knowing beforehand which holes in the mounting brackets apply to your particular Trim-A-Gutter/brake setup will save you time and effort. Please look over the hole locations above and determine which setup below applies to you before proceeding.
Setup Note: Determine type of Van Mark brake you use and follow the instructions in that column to mount your new tool. For all other brakes you must purchase a set of UniLegs and follow steps 1-6 “Tool Setup on UniLegs”
Mark Series™ Brakes
Trim-A-Brake II™ & J Brakes™
Trim-A-Brake I™
1. As seen in the mounting bracket drawing above, use holes O and Q when mounting right bracket K and left bracket J on either side of center casting. 1. As seen in the mounting bracket drawing above, use holes O and P when mounting right bracket K and left bracket J, on either side of center casting. 1. As seen in the mounting bracket drawing above, use holes O and P when mounting right bracket K and left bracket J on either side of center casting.
2. Insert hex head screw C down front hole O of right bracket K. From below, place washer F onto threads and start hex nut G. Insert hex head screw C down front hole Q of right bracket K. Again place washer F onto threads and start hex nut G. Place bracket K over rails letting washers F hook over rail flanges (see Detail A). 2. Insert hex head screw C down front hole O of right bracket K. From below, place washer F onto threads and start a hex nut G. Lower front of bracket over base rail until washer F catches flange (see Detail B). Insert hex head screw C down rear hole of O. From below, place washer F onto threads and start a hex nut G to capture front base rail. 2. Insert hex head screw C down front hole O
of bracket K. From below, place washer F onto threads and start a hex nut G. Insert hex head screw C down front hole P of right bracket K. Again place washer F onto threads and start hex nut G. Place bracket over rails letting washers F hook over rail flanges (see Detail B).
3. Insert hex head screw C down rear hole of O. From below, place washer F onto threads and start hex nut G. Insert hex head screw C down rear hole Q. Again place washer F onto threads and start hex nut G. As seen in Detail C, rail flanges should now be captured. Repeat procedure on other side of center casting with left bracket J then continue to step 4 below. 3. Position spacer H between bracket K and rail, align holes. Insert Hex Hd screws D down holes. From below, place washers F onto threads and start hex nuts G to capture rail (see Detail D). Repeat same procedure on opposite side of center casting with left bracket J then continue to step 4 below. 3. Insert hex head screw C down rear hole of O. From below, place washer F onto threads and start hex nut G. Insert hex head screw C down rear hole P. Again place washer F onto threads and start hex nut G. As seen in Detail E, rail flanges should now be captured. Repeat proced-ure on other side of center casting with left bracket J then continue to step 4 below.
To complete the Van Mark brake installation, follow the remaining steps outlined below.
4. Place rail L alongside right bracket K with 5/16” hole to front of brake. Slide hex head portion of screw D down track and extend through 2nd hole from end of bracket K as shown (center arrow). Start knob F onto threads and leave loose for now. Repeat with remaining rail L and left bracket J.
 5. Align front hole in rail L with front hole in bracket K. Insert Fast Pin A through front hole in rail, then through bracket. Repeat this procedure on left side of casting with remaining rail L and bracket J. 6. Start knob F 2 or 3 turns onto the threads of a hex head screw D. Slide hex head portion of screw into track of rail L 1 ½” and leave loose. Repeat this procedure with remaining rail L.
7. Ensure left and right rails L are 34 ¼” apart to receive the slotted brackets on bottom of tool. After aligning the slots with knob threads, slide tool onto rails until slotted brackets are FLUSH with ends of both rails (see Detail F). Tighten knobs on both sides. Ensure rails and brackets are positioned squarely on brake then tighten all fasteners, knobs F and locknuts H securely in place. Check all fasteners and knobs often and tighten as needed.
8. Install the roller handle over the handle plugs and insert short fast pins B through holes. Reverse procedure to remove handles when tool is being stored or transported.




...............................Setup Page 2
 9. To install the bending leaf handle, align holes in ends of tube with holes in handle plugs. Insert short fast pins B as shown.