"service manual"
Contents
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9. 951979 154 peaijds 1228S sjamog deg ozuow MN 2014AN SA 15S deg ually 2 J8A09 eas HEIS 19409 9409 M913S Jaoeds usng 8 6 Buds 190 101 91 6 J9YSEM pnys 2 0 pnys sJaBunid 2155 Burulojay poy 10 29 19 poy 1099 95 19915 19114409 207 ba UE X 91 6 PMS SINN 20 N 9 Us 42 43 39 48 a in 77 a forte GEARBOX UNIT SPARES LIST AND DIAGRAM SHO JOPSPS dn 1894 AISS 9X 004 Mq SINZI S SI u q you sey A quiesse UOIUId Jo yuBuap yey y y Tomeo FULreoq sqny JI 8 993 YASUE ur p noys Auy GI ssutids pue speq do spor 104 pue 81 Suryoo Suna sur Aq anuruor oq prnoys 943 Jo ynoqy SIY 19901109 0 dn ssutids pue speq 100094 8 SUTMOT OJ og Pas P
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13. SOMO PU V 9 puey 6 pue 0 se Sunsnfpe yseppeg General notes on maintenance and overhaul Only genuine Hewland spares should be used as re placements These are manufactured in our own work shops to the fine tolerances necessary and rigorously inspected and tested New nuts and gaskets should always be used on re assembly When warming the outside of the case keep the blow lamp moving Do not overheat Test with a spot of moisture which will bounce off when the case 15 hot enough When refilling with oil put half the quantity into each filler hole Never put all the oil in one oil sump TE 4 speed 5 speed 4 09906 p 6 peeds p 4 p ds 6 0996 p ds HEIS p ds es p 215 009 Bn 116 91 iz 092 91 262 5 99 13 IST 491 9 5 052 97 6 2 991 9 9 192 91 29 2 14 90 977 591 9vez spez crez zvez 91 byez 91 SY PEZ SY pez 591 yee 491 CET 91 62 391 lez 691 zoez 91 Loez oez 91 96 91 1 son
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15. HEWLAND L G 500 4 SPEED and L G 600 5 SPEED TRANSAXLE GEARBOX Maintenance Overhaul Manual EEE EHGINEERIKG LIMITED MAIDENHEAD gt BERKSHIRE ENGLAND THE L SERIES TRANSAXLE GEARBOX UNITS These units are designed for use with 300 to 450 cu inch competition engines and are manufac tured as two four and five speed models The present manual deals with the four speed unit LG 500 and the five speed unit LG 600 Only one final drive ratio is used 3 3 1 Since the drive is indirect at all times any change in ratio can be made through the gearbox The drive is taken from the clutch shaft to the hypoid final drive via straight cut gears Gear change is effec ted by mnon synchronised face dogs Ratios can be changed without removing the unit from the chassis and all requirements can be met from OUT extensive range of gears All ratios except bottom are inter changeable and may be arranged in any order The differential and crown wheel assembly is mounted on two taper roller bearings located in the side plates and adjustable to correct pre load by shims Output shafts are also mounted in the side plates and lip oil seals are fitted The pinion is supported by double angular contact bearing clamped to the case directly behind the gears This bearing accepts the major radial and thrust loads while a roller bearing supports the tail Thus p
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18. PL Ul kKkussse I 8918 SUI dn OJ Aressoovou JI pue s uur q pue ssn s Surypop ay mo pue Mesos deo ONN 94 ssuLids s eq u07 0Q 993 AQ spoy 1 991 mo speq pue ssulidg poy 9401 y qmo 9 deo 90147 Y OPUN Or 4707 OY ANN om Motos deo 998 y Aq Sursnoq Jo IEL 993 jo SI nun umop pue 10 29 9 ol SI 31 101090195 01 8 1 UO oY JO SI y HUN ay 9 5 181 ay Surpys Aq SUISNOY Je8un y pue suuds ay pp 151 y NU y PUB qe y Yoouyy anurjuoo 4 1 Ajsodoid pue 4481 synu yey y y aq
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21. ey 19410 9129 5 9 9 5 1299 soey 4 9 UOIUId BuisnoH 101 9 96 19 5 9700 pug JaBuly 10399195 Jaoeds 10 218 gt 04 10399195 2199 Pi puz pod bon 209 05 2 4 1042295 125 10129195 ley LON tsojg qoi amp 10139406 1514 POY 10129195 HEYSAXOT 945407 SNIL HOYS DT dip2419 JUOJ4 045407 Mogae PETE 40482077 HDIG idey poeds 4oysde sev p ds 3045 07 Bury 4119 risau 9 1514 7 99 7 ud 1405 Jaysem INN 095407 JOYSEM ISNIYL NOILdIYDS3A p p ds JON JON 1 JON JON lt 435 11 JON lt JON pejensn JON JON SYYVNIY y 1611 SaJeds 211702 91705 970 vroz 9204 791 705 t91 zvoz 1 91 roz 91 voz 91 00 14 01505 91 9505 14 4 04 13 02 14 H 60 91 80404 14 4404 14 9292 97 pOl 1 104 14 TOT 14 1202 13 aa i aaan zoz S OT 900 91 5106 ld saysoy 387024 uorug 1994 onus epson
22. inion mesh can never be affected by case expansion The gears run directly on caged needle roller bearings and each gear and bearing revolves as an assembly Heat treated nickle chrome steel is used for all gears and shafts Selector forks are cast in aluminium bronze and casings in magnesium alloy The differential is of Limited Slip design and two types are manufactured The unit normally supplied is the cam and pawl type The other is the Powr Lok type operated by flat clutch plates Both units are illustrated The gearbox unit is lubricated by oil splash and the final drive by pump The pump is located in the main case and is fed via a filter which can be withdrawn from the putside of the case The oil is piped out of the main case on the right hand side and returns via external piping thus providing for the fitting of an oil cooler The latter is strongly recommended to ensure that oil temperature does not exceed its maximum of 1109 250 F The gear change rod is mounted high on the right hand side of the unit to facilitate the instal lation of the gear line linkage The clutch is operated by steel fork and push rod accepted as the simplest and most reliable system especi ally with monocoque chassis The push rod is actuated from slave cylinder mounted on the side of the main case The general configuration of the LG Series pro vides the maximum utilisation of power allied to minimum weight for the p
23. ower required to be transmitted Technical Specification 220 2347 5 speed 10 1257 6 425 1305 5 speed _ epeen 42 5 SPEED 5 SPEED BOX 4 SPEED BOX atv 2 4 1 3 1 3 5 2 4 085 FLANGES 1 AG 7 uoneoyioods _ L 9 oo re 77 5 L 9 r er RAET 5 Sw PARA sqnH ZI opts 91 Jeroods pue piepuejs soey Jeon 6 PIS 9 sory L 5104 10199 95 9 yur Q PYM UMOID dn umes TOUT L 9 7 i J10159J9S 9 Mel Er SAN 9529 L 9 GF 10190995 L dn 30195 sy104 10199J95 TI supuewsip 9 510 2030915 6 2 PAJA 1 oes 19801 10109 95 7 Sumnj ss PYM UMOID 6 1800 hI w oe 9 eet ses Funsnfpe peo S d 6 7 44 sioSun q 9 74 5 6 116 Oe ee 9 e pue 5 27 Wes OG 6 word pue 27 od pue sanmdede gt TO 6 w
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