Sab 163 HF MK2

Hi guys

I just had a Sab 163 Mk2 land on my bench for overhaul. Most of the compressor is the same as later models but the suction check valve assembly is a bit different. I'm thinking there is a spring missing but I need the manual or an exploded view in order to confirm this.

Can anyone help me with this request?

Here's all I have on the 163, there is a tool list and exploded view as well:

https://drive.google.com/drive/folde...fO?usp=sharing

Excellent....thank you Tycho. This is very helpful.