Rewind.IT, Reread.IT – Ozito LTR-301 500W Line Trimmer spool

Back in April this year, when my trusty Black & Decker line trimmer was finally retired due to a variety of failures, I bought an Ozito LTR-301 500W Line Trimmer. The Ozito was used successfully on numerous occasions until today, when the line ran out – of course, it does when you have only just started.

If you are like me, you will save a bit of money by using bulk line. As it happens, I had some 1.4mm line left over from an older cordless line trimmer whose battery had failed, and this line had been used successfully on the Black & Decker and now looks like it will be used for the Ozito.

I removed the spool cover and took the spool out – and also consulted the instruction manual for my line trimmer, a step that many people often leave out (for better or for worse).


Looking at the red arrow, it would appear that the line is wound in the anti-clockwise direction – which I found a little strange, for a number of reasons. Usually, upon inserting the line, we bend it backwards – like a U-turn, then proceed winding, however this is contrary to the instructions (as I read it at the time).  There is an arrow on the spool, which implies that the line should be wound clockwise.

In addition, the instructions said to use 1m of line – when the specifications say that the line is 1.5mm x 4.5m – so I thought I would cut 2m of line first and try it out.  The first time I wound the line, it came out of the hole when I was winding, so the next time I managed to wind it, then did the same for the other half of the spool.

I installed the spool into the holder and put the cover back on.  The power cord was plugged in and on switching on, the line started unravelling.  Ok, I took the spool out again, and then rewound the spool in the opposite direction, clockwise as indicated by the arrow – success, now the line trimmer was working and I proceeded to cut the grass edges.

Anyway, looking back at the instructions, I now read – “wind … in the direction of the arrows on the spool cover.”  Now I realize my original mistake – my mind saw the words “direction of the arrows” and my eyes were drawn to the red arrow that is in the picture, not realizing that this might just be a generic illustration that is used for many line trimmers.  In addition, the spool doesn’t quite look like this – something I did notice at the time that should have rung a bell.

If I had, like most people – just started winding the line on, without resorting to the instructions, I would have gotten it right the first time.  Or like some people just buy the replacement spool and line – part number AACLT-005 from Bunnings for $9.90 – which incidentally has 10m of 1.6mm line.


Anyway, I think that when the line runs out, I will wind two lengths of 4.5m line.

P.S. When I started the line trimmer with the line wound in the wrong direction, it started unravelling and kicked up a lot of dust and grit which sprayed up straight into my face.  Fortunately, whenever I am using power tools, I am in the habit of wearing safety glasses that protected my eyes, many times – do you wear them?

Retire.IT – Rest in peace – Black & Decker GL570 Line Trimmer

There comes a time in any machine’s life, that unless it is capable of self-repair that eventually the law of diminishing returns kicks in. Sadly this has now happened to my Black & Decker GL570 Line Trimmer that I have been steadfastly maintaining to this day. The actuator that enables the line to be extended began to have trouble soon after its repair the second time – due to the hole in which the actuator rotates that was getting enlarged, hence the actuator was not rotating freely and was not doing its job. Today I was trying to trim the edges after a hiatus of a month or more, the growth was a bit too much – the motor was getting hot from the heavy cutting and threw its bearing. When the bearing came off, the motor ground to a halt, and the actuator pin snapped off.

After opening it up, even after 10 minutes, the motor was hot to the touch. Perhaps this is now the time for this faithful line trimmer to rest in peace. Shall I “Retire.IT“? I.e. allow it to rest in peace or perhaps look to see what can be done with its component parts.


Here is the motor with the bearing that has come off – that is the little brass piece. I could put the bearing back in, but due to the nature of the motor and its housing, there isn’t anything to stop it coming back out – unless I make a stopper to block the bearing from sliding off.

Now this might be a good time to see about removing the line spool housing from the motor spindle. If this can be done without damage to the spindle shaft, I might be able to use or repurpose one of the after-market cutting heads. If I can do this, then this line trimmer could live again with perhaps a Little Juey head.

We don’t usually rush in as we also might need to work out the economics of the situation. A replacement cutting head would cost about $32 but a cheap new line trimmer like the Ozito 550W is only $50.  If I go for a new line trimmer, it will most likely be in fine working condition and will generally work within its guarantee period.  After it goes out of warranty, I might eventually end up in the same situation with having a line trimmer that isn’t working well.

Maybe the solution is to attempt to remove the line spool housing from the motor.  If it could be done without damage, then perhaps design and make a new trimmer head for it that is either similar to the commercial heads where it is easy to replace the line.  Failing this, then buy a new line trimmer, and think of a use for the motor from the Black & Decker.