I've found that model number generally indicates the HP and Cut width.
Murray were the largest producer of Ride on mowers in the world until their merger with MTD (which I suppose now makes them biggest)in 2006.
Murrays were often re-badged, as most famously here, Victas but also Parkland and many others.
Once you get a feel they're easy to get bits for and share lots of parts.
Here's a 150-42 manual
OOPss it's too big... I think.
You can find manuals for similar units on the Parklander site and you'll find, with minor differences, they tell the same story.
Download the 2 or 3 closest to yours and read them with the mower in front of you. The right one will be obvious.
I'm doing a complete refurb of a 170/107 at the moment with a Chiggs and Stwatton 18HP engine and some tidying up with new bearings, belts and some paint and polish. ($1000 budget for everything)
That may be of some help.
Check my other thread as I'll keep it updated as the project moves, big moves next week, just cleaned the working shed out so I can get it going. Should be installing the engine next week and the deck refurb the week after.
That might help with some maintenance issues if nothing else.
Rgds
Bill
