Injection Pump Replace for BSD333

Need manual or instructions to replace the injection pump on a Ford BSD333 diesel engine in a 1985 New Holland L785.

Not sure how to set up for TDC or what special tools may be needed. I know the pump needs to be timed with engine, but cant see any tdc pins to set it up. Any help is greatly appreciated.

Is the shaft keyed?

Pin in the gear fits in the notch in the pump, the outer mounting flange has a mark on it and the timing marks are on the back of the mounting plate. Line the pump mark up with the zero mark on the plate, it's one of the simpler pumps to install.