Specifications

Trimmer Adjustment Procedures
One procedure combining all the required adjustments organized in specific order is
presented in this section for providing the best success in making adjustments to
the trimmer assembly. All the trimmer replacement procedures are found in the
previous section.
The EMT 10T Embroidery Peripheral trimmer system is assembled and thoroughly
tested before the machine is shipped. Although the set up of the trimmers should
not change during normal use, there are a few things to be aware of to prevent
problems.
• Dirt, dust, and thread lint debris can build up and prevent the movable
knife (in the rotary hook assembly) from actuating correctly. Keep the
area clean and you shouldn’t have a problem here. If for some reason you
find that the movable knife is out of adjustment a procedure for adjusting
it is presented in this section.
• Thread birdnesting around the rotary hook, picker, and UTC sensor arm
could cause the knife and/or picker, to become misadjusted.
General
The following procedures provide a guide for adjusting various portions of the
trimmer system.
Note: This procedure requires the use of several service tools: a medium screw
driver, a small screw driver, a 3/32" hex wrench, a 1.5 mm hex wrench, a
2 mm hex wrench, and a 2.5 mm hex wrench.
Note: In addition to the "standard" tools needed above, you will need a torque
wrench (0-250 in/lbs) if making adjustments to the "select" position.
CAUTION! If these adjustments are attempted without using the
proper procedures and tools (and without proper training in some
cases), machine components may be damaged and operation of the
trimmers may become inconsistent.
Z Timeout Errors
An area of concern with the trimmer system is when birdnesting occurs in the hook
area. If a birdnest builds up in the hook area, there is a potential that movable knife
movement may be obstructed and a mechanical slippage or bending may occur
with one or more components of the trimmer system. This is the most probable
cause for the trimmer system to create Z timeout errors. When Z timeout errors are
a result of the trimmer system, there are two general areas that may contribute to
the situation: 1) bent or broken parts in the trimmer cam system, and 2) movable
knife select position adjustment.
4 - 10 Trimmer Adjustment Procedures
EMT 10T Technical Manual Melco Embroidery Systems