Need advice for replacing cutting deck belt on 2009 Westwood T1600 ride-on mower

[deleted user 2139874214]

Hello, sorry if this is the wrong place to post this, I'm new here, posting to look for some advice...

I'm trying to replace the cutting deck belt on a Westwood T1600 2009 ride-on lawnmower. I cannot get the belt guard off to get to the cutting deck pulleys to install the new belt as the guard is a single piece of plastic and can't be removed until the pulley connecting the deck to the engine drive is removed (see photo). I cannot for the life of me get the nut on top of this pulley (red arrow on photo) loosened - I've tried (while using a gripper to stop the spindle turning) until I thought I was going to burst a blood vessel...

How do I remove the belt guard? Any advice very gratefully received

 

[Welderloon]

Probably a left hand thread.

 

[agrimax]

It's not left hand thread. It shouldn't do but it needs an impact gun on it to loosen it.It should also be a 10.9 HT bolt instead of an 8.8,so it has been replaced before and may have threadlock on it.

 

[Alchad]

I think when I had the same problem with my Countax I jammed a piece of wood between the blade it’s attached to and the cutter deck. However I think an impact driver would also do the job.

 

[Timbo]

Hello, sorry if this is the wrong place to post this, I'm new here, posting to look for some advice...

I'm trying to replace the cutting deck belt on a Westwood T1600 2009 ride-on lawnmower. I cannot get the belt guard off to get to the cutting deck pulleys to install the new belt as the guard is a single piece of plastic and can't be removed until the pulley connecting the deck to the engine drive is removed (see photo). I cannot for the life of me get the nut on top of this pulley (red arrow on photo) loosened - I've tried (while using a gripper to stop the spindle turning) until I thought I was going to burst a blood vessel...

How do I remove the belt guard? Any advice very gratefully received

Impact gun.