From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Arrangement of a rear hydraulic shock damper for a 20 HP vehicle.
| Identifier | ExFiles\Box 5a\2\ 02-page218 | |
| Date | 17th May 1930 | |
| F 55965 E54988 ARRANGEMENT OF REAR HYDRAULIC SHOCK DAMPER 20 H.P. TITLE BLOCK: SIM'D SERIES ALTERATIONS ISSUE NO. DRAWN: POOLEY TRACED: F.P. CHECKED: G.H.S. PASSED: H.O. DESIGN: J.{Mr Johnson W.M.} ROWLEDGE STANDARD: C.E.R. WORKS: F.W. SUPERSEDED BY: SUPERSEDES: F 31252 SCALE 1/2. STAMP: ROLLS-ROYCE LIMITED DRAWING OFFICE 17 MAY 1930 DERBY NOTES & INSTRUCTIONS: WHEN MAKING GLANDS WITH ASBESTOS ROPE IT SHOULD BE WOUND ROUND THE LEVER SPINDLE 4 TIMES & CUT OFF APPROX .125 SHORT OF 4 COMPLETE TURNS IN ORDER TO KEEP PRESSURE EVEN. VIEW SHOWING SPECIAL TOOL G9888 RUN UP TO END OF THREAD. TOP GLAND MUST BE FILLED WITH GRAPHITE. WHEN FINALLY ERECTED THERE SHOULD BE .002 CLEARANCE (MAXIMUM) AT EACH OF THESE POINTS. A MINIMUM SPACE OF .125 BETWEEN TUBE & DAMPER. SOCKET SHOULD BE FILED TO GIVE THIS WHEN CHASSIS LEAVES THE WORKS. A MINIMUM SPACE OF .075 IS REQ'D BETWEEN BALL PAD SPIGOT & OUTER TUBE FOR ADJUSTMENT & IF NECESSARY SOCKET SHOULD BE FILED TO GIVE THIS WHEN CHASSIS LEAVES THE WORKS. WHEN ASSEMBLING, CONNECTING TUBES SHOULD NOT BE FILLED WITH GREASE. IT IS IMPORTANT THAT BALL VALVES ARE A GOOD JOB CARE MUST BE TAKEN TO ENSURE THAT THE VALVES SEAT PROPERLY. DAMPER MUST NOT BE FILLED WITH OIL ABOVE THE LEVEL OF FILLER PLUG HOLE. TO BE FILLED WITH SPECIALLY FILTERED COMPRESSOR OIL. LEFT HAND ONLY G.72786 ON / RIGHT HAND SIDE CENTRE STAY / FOR BATTERY BOX IS FITTED. LABELS & PART NUMBERS: LEVEL LINE OF FRAME BRAKE ROPES IN MAX BUMP LOAD ON BALL PIN 40LBS +0LBS -6LBS 45.500 TO ¢ OF REAR DUMB IRON BRAKE ROPES IN NORMAL POSITION SPRING IN MAX BUMP POSITION F.55262 USED UP TO CHASSIS ONWARDS F.55261 USED ON CHASSIS F.55263 USED UP TO CHASSIS ONWARDS F.56207 USED ON CHASSIS BRAKE ROPES IN REBOUND POSITION SPRING IN REBOUND POSITION 13.975 TO ¢ OF REAR AXLE F.54978 R.H. F.54979 L.H. K.A.304 BOLT K.9009 NUT K.9009 WASHER K.A.215 BOLT K.4310 NUT K.7703 WASHER K.9008 WASHER K.A.203 BOLT K.4003 NUT K.9008 WASHER G.72786 K.306 BOLT K.4003 NUT K.9009 WASHER F.54984 G.72785 F.36086 R.H. F.36087 L.H. K.A.304 BOLT K.4002 NUT K.9009 WASHER F.54980 R.H. F.54981 L.H. K.306 BOLT K.9009 WASHER E.4100 NUT F.35280 F.52081 MAX BUMP OF TOP BALL PIN .75 ¢ OF REAR AXLE 6.150 REBOUND OF TOP BALL PIN 4.250 MAX BUMP OF AXLE 6.125 REBOUND OF AXLE F.75392 17.000 ¢ OF DAMPER & OUTSIDE OF FRAME TO ¢ OF CHASSIS .560 CLEARANCE BETWEEN SPRING & DAMPER (MINIMUM) ¢ OF SPRING 20.000 TO ¢ OF CHASSIS E.70921 STUD K.4310 NUT K.9008 WASHER F.74870 USED UP TO 118 IN 'F' SERIES F.36139 USED ON CHASSIS 117 IN 'F' SERIES ONLY & REPLACEMENTS F.77983 E.53351 F.74642 .1875 DIA BALL F.75143/4/5 F.75168 E.52806 E.70791 F.73969 E.75842 F.73966 E.53351 .156 DIA BALL K.7707 F.73930 LIGHTLY CENTRE PUNCH TO LOCK SCREW F.73933 F.75168 3.000 TO END OF PISTON IN REBOUND POSITION G.92819 F.6859 F.55207 F.77981 E.71487 F.53218 OIL PASSAGE F.73967 F.73911 F.54385 6 PLY ASBESTOS ROPE F.341 F.74654 E.74083 F.60201 SHADED LINES SHOW OIL LEVEL .050 CLEARANCE E.70287 K.4310 K.9008 E.73969 E.75842 .156 DIA BALL K.4316 F.73966 F.74512 R.H. F.74513 L.H. F.54995 F.74646 F.74884 USED UP TO CHASSIS ONWARDS F.36338 USED ON CHASSIS F.74870 USED UP TO CHASSIS ONWARDS F.36139 USED ON CHASSIS F.74880 STUD K.4207 NUT K.9006 WASHER K.4404 WASHER F.77565 AIR RELEASE HOLE .025 DIA .050 CLEARANCE F.74891 F.78491 E.76492 F.78489 F.78469 F.78464 G.71510 F.77660 F.74566 E.77493 F.76504 F.78483 USED UP TO CHASSIS ONWARDS F.56357 USED ON CHASSIS 3.150 TO END OF PISTON IN MAX BUMP POSITION F.75393 USED UP TO CHASSIS ONWARDS F.56356 USED ON CHASSIS F.71720 G.71719 G.9888 F.3451 F.74654 F.74903 F.79469 K.4801 F.75393 F.78168 F.77983 USED UP TO CHASSIS F.75073 USED ON CHASSIS F.4877 F.75389 K.130 E.75841 F.74246 F.54988 F.6953 E.70668 F.51377 F.54366 K.4615 F.51531 K.4801 F.55067 F.54375 K.4801 F.54772 K.4522 F.54512 F.51281 F.54387 K.4615 F.51531 RIVET OVER F.51537 E.50119 F.79644 F.77588 K.4608 F.79073 | ||