1955 Seagrave Model 530-BH Manuals

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( --...- OPERATING MANUAL Model 5 3 () ,/ Serial No. CONTENTS Engine Section A Clutch, TransITlission & Universals Section B PUITlP Section C Axles, Brakes §.z .,s,h'O€-k .. ,Ab,sor be r s Section D Steering Gear Section E Lubrication Section F Aerial Ladder & Hoist ( Aerials only) Section G This ITlanual covers only equipITlent that is built in accordance with our I standards. If special equipITlent has been,
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  ( --...- OPERATING MANUAL Model 53 () ~!3J17Jl> I - I ~ ,/ Serial No. ~J%dJ CONTENTS Engine Section A Clutch,TransITlission & Universals Section B PUITlP Section C Axles, Brakes §.z .,s,h O €-k .. ,Ab , sor be r s Section D Steering Gear Section E Lubrication Section F AerialLadder & Hoist ( Aerials only)Section G This ITlanual covers only equipITlent thatis built in accordance with our I standards. If special equipITlent has been , specified and install~d, s. uch as ' air brakes, alternators, etc, procedures ITlust be ITlodified accordingly. NOTE: Always ITlention Serial Nu:mber in any cOITlITlunications re garding this apparatus , THE SEAGRAVE CORPORATION COL UMB US 7, OHIO BICKLE-SEAGRAVE LIMITEDWoodstock, Ontario CANADA t: .  SECTION A THE ENGINE The engine is a 12 cylinder Vee type. Theincluded angle betweencylinder banks is 80 0ã The cylinders are numbered from 1 to 12, starting with No.1 being the front cylinder of the left bank. The cylinders are numbered alternately so that the cylinders in the left bank are numbered 1, 3, 5, 7, 9, and 11. The cylinders in the right bank are numbered 2, 4, 6,8, 10, and 12. The firing order is 1 -4 -9 -8 -5 -2 -11 - 10 -3 -6 -7 - 12. Valve liftersare the hydraulic oil cushion typeand maintain zero tappet clearance without adjustment. The engine is actually much more simple than appears upon casual observation. It consists of two six cylinder banks, each with its own car buretor and governor equipment and which are interconnected. The con necting rods operate on one common crankshaft; the rod on one bank being mounted on the crankshaft alongside that of the corresponding cylinder on the opposite bank.The blocks are offset slightly endwise of the engine to permit this. The cylinder blocks are interchangeable, one bank to the other. The cylinder heads are identical excepting that expanding plugs are in serted in oppositeends in place of the water outlet connections. Each of two ignition distributors fires all twelve cylinders . The only reason for two distributors is to fire the two spark plugs in each cylinder thereby providing a double ignition system. It is not recommended that both ignition switchestime as this sometimes results in engine roughness. be alternated in use to make sure that both systems erlyatall times. be .. on at the same They should, however, are functioning prop- The connecting rod and mainbearings are of the preClslOn interchange able type and may be renewed by simply slipping new bearings into theplace of the old. Should the crankshaft be scored or worn excessively and out of round it will be necessary to either regrind the crankshaft and install under-size bearings or install a new crankshaft. If the engine is properly lubricated and not badly abused such major repairs should not be necessary for many years. IGNITION The ignition system is the 12 volt dualtype having two 12 cylinder distributors, each with separate coils, andsupplied from either of two pairs of 6-volt batteries. Each pair of batteries is wired in series to provide a 12 volt electrical system. Either distributor may be used separately or both at the same time and, by means of a double throw switch on the instrument panel,may be supplied from either pair of batteries. A-I  The distributors use double coils and double breaker points. Each coil and each pair 'Of breaker points supply one bank of cylinders. · The distributor stationary breaker points control the firing inthe left bank of cylindersor those numbered 1. 3, 5. 7. 9. and 11. The breaker points on the adjustable breaker' plate (see Fig. 1) control the right bank or those numbered 2. 4, 6, 8, 10, and 12. The points for the left bank are timed by loosening the distributor hold down clamps and rotating the dis- tributor body. The points for the right bank are timed by the eccentric adjusting screw on the adjustable breaker plate. ENG I NE FI~ING O~O§R 1 -4 -9-8-5- ?- 11 -1 0-3-67-1i: BRrAXER ADJU STINGSCREW IGN I nON OIST RIB UT OR ( CAP AND ROTOR REt1Q/EO ) To time the distributor: - ~E:RMI'IAL TO COIL -S- FIG _l t COLA I~ 8 R~AI( E R PlATE COIL B WIRINGOIAGRA ;::! FORL.H. ~ ON-ESY S Et1 ONLY 5 .. 0' ... ~ sse - 1. Removethe distributor head and rotor aI).d clean. Set breaker points to .018. 2. Remove flywheel inspection cover so that markings on flywheel may be seen . .-- 3. Crank theengine slowly with No ·. 1 (# lL) piston approaching top center on the compression stroke. This is indicated by the flywheel markingIGN/No.l and the mark must stop dire · ctly underthe center of t~e fly wheel inspection opening. Should the flywheel be turned past the pointer back the flywheel up at least 4 inches and then crank forward again to position. Care in setting theflywheel insures accuracy of thetiming. A -2  4. Loosen the distributor flange clamp screws and rotate the distributor housing until the breaker points for No.1 (# lL)are opened sufficiently to give a slight drag on a .010 feeler gauge . Tightenthe flange clamp screws and recheck thepoint opening. Checkthe rotor position forthe ' wire in distributor for No.1 cylinder.Time the breaker forthesecond distributor in the samemanner. 5. Rotate theflywheel until the mark IGN/No.4 appears in the center of the flywheel inspection opening. Time the breaker for No.4 (# 2R) . This is done by movingthe breaker plate adjusting screw untilthe breaker points give a slight drag on.010 feele r gauge. Lock the plate locking screw. Now time the adjustable breaker in the second distri butor. 6. Recheck for correctness of setting by t. urning the compressionstroke on No.1 and No.4. IF A TIMINGLIGHT IS TO BE USED, DO NOT TIME ON THE REG  ULAR MARKINGS. Make a punch mark 13/16 ahead of the regular markings at both IGN/No ã1 and at IGN/No. 4 and timetothese punch marks with the engineidling at about 475 rpm. The distributors may be checked on a distributor checking machine to show a dwell angle of37 degrees; an advance of 2 0 at 4.00 distributorrpm and 7 0 advance at 1400 distributor rpm. The firing interval is-20 0 and 40 0ã Spark pluggap should be .025. DISTRIBUTOR MAINTENANCE The distributorsare equippedwith a built-in oil reservoir. This should . be refilled yearly by removing the plug on the distributor shank and fillingwith grade 20 W oil. When replacing plug, apply a small amount of sealer te the threads to prevent oil seepage. A trace of Delco-Remy cam and ballbearinglubricant or vaseline should be placed on the breaker cam every 5000 engine miles. Also, at the same time, put 1 or 2 drops of lightengine oil on the breaker pivot and 3 or 4 drops on the feltwickunderthe rotor. AVOID EXCESSIVE LUBRI- CATION. At periodic intervals, depending on service, the distributors and coils should be inspected and serviced by an authorized electrical service station. This should insure thatthe automatic advances, contactpoints, condenser action, etc. are functioning properly. The proper breaker point opening is .018 to .024 inch. A-3
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