[Michael R.]

You could also have a look at the fold-out service chart in UC-F1. . .

The button head zerk under either rear bogie pivot arm may have been knocked off.
Fitting, Lubricator, Tecalemite #28-3/8 BSF. Part number C01UC 100400. It also has a USA cross-over number as well as a U.K. number.

There could be as many as thirty-three / thirty-four, depending on UC MK-I* or MK-II* and how they are equipped.
I.E.: tow hook has one.

The MK-I* tilting wireless antenna base has two.

Although each bogie wheel has one, there are five wheels per side on the little carriers, the single 10" return roller spindle being overlooked. The pivot pin on the underside of the rear bogie pivot pin, plus the too often ignored double bogie assemblies where they pivot on the cross tube, in addition to the secondary pivot. No wonder they are a PITA to remove.
The speed change assembly has two, one at the base of the ball and socket, the second one on the bearing support.
The steering gear box can be found with an assortment of fittings that may not be original.

The spare used to hold the lubricator on the signal pistol holster bracket is a gem!