Malco SRC24A Channel Shear User Manual
Src24a blade replacement instructions
 
SRC24A Blade Replacement Instructions
Step #1: Loosen, but do not remove the (6) 1/4-28 x 
.550” long bolts that fasten the die housing to base. 
(Hex head and locknut wrench size is 7/16”.) 
Step #2: Lift the handle to its fully open position. 
Loosen the bottom 5/16-24 x 1-1/4 long bolt that 
fastens the blade support to the side brackets. (Hex 
head and locknut wrench size is 1/2”.) 
Step #3: While resting handle on shoulder, remove 
the bottom 5/16-24 x 1-1/4 long bolt that fastens the 
blade support to the side brackets. Removal of this 
bolt will allow the handle to swing open farther and 
expose the cutting blade. 
Step #4: Remove the (2) 1/4-28 x 1-3/32” long hex 
bolts (Hex head and locknut wrench size is 7/16”).
Step #5: Remove the (2) socket head cap screws 
from the die side housings. (The hex wrench size is 
5/32”) The die assembly should slide out freely.
Step #6: Note: The back die spacer, now free, may 
drop out of the bottom of tool. 
Remove the (2) remaining 1/4-28 x 7/8” long hex 
bolts from the die assembly and clean out any scrap 
material, dirt & old spacers. (Hex head and locknut 
wrench size is 7/16”) 
Step #7:
Visually inspect the dies inside cutting
edges for wear. If wear is detected, reverse the die 
mounting sides to position a fresh cutting edge to the 
inside. Place one of the new spacers between dies. 
Note: Make sure the spacer holes line up with the 
die holes. The outer edge of spacer should be flush 
with the die edge. Insert the (2) 1/4-28 x 7/8” long 
hex bolts in the same holes as removed in step #6. 
The bolts can be installed in either direction but must 
be left loose at this time. (The hex head and locknut 
wrench size is 7/16”.)
Step #8:
Insert the back spacer and visually align
with die holes. Hold the dies tightly together with 
hand pressure. Slide the die assembly between the 
housings and align with housing holes. Install the (2) 
1/4-28 x 1-3/32” long hex bolts. The bolts can be 
installed in either direction but must be left loose at 
this time. 
Step #9: Install and tighten the (2) socket head cap 
screws that are located on the housing sides and 
were removed in step #5. (Hex wrench size is 5/32”) 
The die assembly may need to be lifted up to help 
align these holes.
Blade Replacement:
Step #10: Remove the (1) 5/16-24 x 
1-1/2” long, hex head bolt from the blade support 
connecting it to the link. (Hex head and locknut 
wrench size is 1/2”.) The opposite end of the link 
does not need to be removed.
Step #4
Step #5
Malco Products, Inc. | Annandale, Minnesota, U.S.A. | www.malcotools.com
SL107378C