Thanks for that Roy, much appreciated.

My bus number (if any): RTL 960, RM 1585, RML 2667 and several RTs

Hello Brian,

Your copy of the Lockheed braking system Service Manual
Section 2 page 8 gives all the information required
to overhaul the hydraulic supply reservoir and it's contents.

Lockheed recommended that the filter be changed at intervals of not more than 50,000 miles.

The filter in question are common to all Routemasters irrespective
off the engine type fitted.

Filter Particulars are:-

1) OE Part No ALH 311A
FCL Ref No :- FCL 7474

Filtration Control Ltd
Filtration House
Units B/C
Longman Court
Skettby Close
Brackmills
Northamptonshire.NN4 7PL
Phone:- 01604 707750
OR

2) Fleetguard Filters LTD

Part No LF563 stocked by

Filter Services (UK) Ltd @

Chesterfield UK 01246 802822
Leeds UK 0113 2451643
Leicester UK 0116 2601233

My bus number (if any): Ex LTE Bus Engineering. AMIRTE. CPC-HGV

Thanks Michael I had forgotten we had that!! I'll alert Philippe...
One thing I am not clear about, and manuals do not often cover, is little tips like Roy's advice about not removing the horseshoe clip as it is very hard to get back in place again.

What I was wondering Roy, and I have not looked at it, is how do we replace the filter with the clip in situ. Apologies if it obvious if you look at it!

My bus number (if any): RTL 960, RM 1585, RML 2667 and several RTs

The clip is underneath the filter holding the bottom filter locating plate in place. IIRC there is either a spring or a spacer under this plate. If NOT removing the tank one would be tempted to remove the clip to make cleaning in the filter cavity slightly easier.

Fleetguard filters should be obtainable throughout Europe from the Cummins dealer network.

Thanks for that Roy, Philippe was worried about how he got the filter out without disturbing the clip.
Thanks also Michael and Roy for the filter details>

My bus number (if any): RTL 960, RM 1585, RML 2667 and several RTs