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GEARBOX

Gearbox.

—To adjust  the primary  chain it  is  possible to swing  the Gearbox bodily on

its  lower  fixing  bolt,  and  to  carry  this  out  the  following  instructions  should  be  observed:—

Slack  off  the  centre  nut  on  the  foot  gear  change  mechanism  and  to tighten the, front

chain  first  slack  off  the  nut  on  the  adjuster  bolt  nearest  the  Engine  and  turn  the  nut  on  the

other  side  of the  anchorage  in  the  same  direction,  i.e., anticlockwise,  until  the  correct chain

tension  is  obtained.  To  ascertain  this  remove  the  small  inspection  disc  on  the  front  chain

cover, the tension can then be felt with the  fingers.  It is most important to leave approximately

a

 in.  or  ½ in.  up and  down  movement.  After the  correct  chain  tension  has  been arrived  at,

re-tighten  the  adjuster  nut  nearest  the  Engine  and  also  the  centre  nut  on  the  gear  change

mechanism.  Always  make  a  point  of  adjusting  the  front  chain first and  the  rear  afterwards.

The  illustration  below  shows  a  similar  Pivot  mounted  gearbox  but  with  hand  operated  gear

change ;  the  adjuster  referred  to,  however,  is clearly  visible.

Should  the  gear  positions  of  the  foot  gear  change  mechanism  not  correspond  to

those  of  the  gearbox  index,  the  short  rod  between  the  operating  lever  on  the  foot  change

mechanism and the striker lever on the gearbox, can be adjusted, as  provision is made for this.

To  check  off  the  relation  between  the  two  first  engage  any  gear  and  then  remove

the  split  cotter and  yoke  end  pin  from  the  top of the  Short  Gear Rod ;  if the two  are correct,

the holes  in the Yoke end  and  the lever coincide ;  that  is,  when the lever  is  centralised,  as  a 

small  amount  of  free  movement  always  exists  in  the  lever.  Otherwise  unscrew  the  locknut

under  the  Yoke  end  and  bring  the  Yoke  end  into  line,  afterwards  tighten  the  lock  nut  and

replace  the  pins, etc.  Only  a  small  alteration  to  the  length  of  the  gear  control  rod  is  ever

necessary.

Should  the  Kick-starter  return  spring  ever  need  replacing,  unscrew  the  Pinchbolt

through  the  kick-starter crank,  draw the  crank from  the  splines,  take away  the  Spring cover

and  old  spring,  enter  the end  of  the  new Spring  into  the  Gearbox  end  cover  first,  utilise a 

pair  of  pliers  to  spring the  end  of the  Spring into  the  locating  hole  in  the  Kick-starter Shaft.

To  increase the spring  pressure  move the  location  of the  spring end  hole  by  hole in  a clock-

wise  direction  until the correct tension  is obtained.

Replenishment of the gearbox lubricant  is very simple  and the method fairly obvious.

The filler Plug  is  situated  on  the  right  band side  of  the  gearbox  cover  plate.  Prior to  filling

with  lubricant  remove the level  plug,  which  will  be  found  about  half  way  up  on  the  gearbox

end cover,  then fill until the  lubricant  starts  to  run  from the  level  hole,  afterwards replace the

level  and filler plugs.

—11—

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Содержание 3.46 H.P.

Страница 1: ...A J S Model 33 7 HANDBOOK for OVERHEAD CAMSHAFT TROPHY MODELS 3 46 H P 4 95 H P MANUFACTURED BY PLUMSTEAD LONDON S E 18 PRICE ONE SHILLING w w w a j s m a t c h l e s s i n f o...

Страница 2: ...w w w a j s m a t c h l e s s i n f o...

Страница 3: ...mption that the purchasers of A J S Camshaft Models are already conversant with the driving of a Motor Cycle we have only included just covering remarks on this subject That accessibility has been ver...

Страница 4: ...ear Wheel Removal and Adjustment 19 and 20 Front 20 Wheel Bearing Adjustment 20 Front Fork Adjustment 20 Steering Head and Handlebars 21 Gear Ratios 22 Engine Revolution Chart 22 Guarantee Details 23...

Страница 5: ...rds On electrically equipped models the Dipping and Dimming Control switch is fitted to left Handlebar Starring Do not overflood the Carburettor only depress the Tickler enough to feel resistance by t...

Страница 6: ...e whilst this is exposed Sparking Plug Oil Feed Pipes to Valve Guides Oil Feed Pipe from main Engine Pump to Rocker Box and Oil Drain Pipe to Rocker Box Pump also Exhaust Pipe Locking Ring etc Next re...

Страница 7: ...THE A J S TROPHY O H C ENGINE 5 w w w a j s m a t c h l e s s i n f o...

Страница 8: ...VALVE AND IGNITION TIMING 6 w w w a j s m a t c h l e s s i n f o...

Страница 9: ...t No XB 3360 The accompanying illustration shows the method of operation of both the valve extractor and the valve grinding tool although the Cylinder Head shown does not of course belong to a Camshaf...

Страница 10: ...re of the chain wheel afterwards pushing out the tool holding this in position Watch that the rubber washer between the rocker box and the chain cover settles into position properly When the chain whe...

Страница 11: ...oner blade spring at the top and the blade and spring can then be withdrawn from the bottom peg when replacing verify that the spring eye locates in its groove half way along the bottom peg The top ey...

Страница 12: ...to time and obviously it is most economical to drain the Tank when the oil is at its lowest recommended level The correct Oil level in the Oil Tank being almost up to the end of the return pipe do not...

Страница 13: ...is made for this To check off the relation between the two first engage any gear and then remove the split cotter and yoke end pin from the top of the Short Gear Rod if the two are correct the holes...

Страница 14: ...LUTCH PARTS 1 2 3 4 5 6 Clutch Spring Screw Main Shaft Clutch Thrust Pin Main Shaft Nut Locking Washer for Main Shaft Nut Clutch Spring Screw Washer 7 8 9 10 11 12 13 Clutch Spring Box Clutch Spring C...

Страница 15: ...ll and Roller Bearings between the two and these will drop out if not carefully handled When re assembling the Clutch the Ball and Roller bearings should be placed alternately round the centre and to...

Страница 16: ...th the finger about in CARBURETTOR The Carburettor fitted as standard to the Camshaft Models is an Amal There are four ways in which the quality of the mixture can be varied these are as follows 1 2 3...

Страница 17: ...ssity for alteration to the needle position may be checked in the following way Start the Engine and open the air lever to its fullest extent open Throttle control half way and notice whether the exha...

Страница 18: ...e over if a spark is now visible the fault is in the Sparking Plug Check off the gap between the points this should be 20 Thou and if necessary adjust them by either tapping the electrodes together or...

Страница 19: ...for any length of time without the Battery or if any trouble is experienced with the Dynamo withdraw the brushes from their housings and clip them under the brush springs or remove the Dynamo altoget...

Страница 20: ...the fingers and moved a tooth backwards or forwards in the chain until the correct setting is arrived at When this is so place the magneto sprocket on to the sleeve and turn the armature shaft of magn...

Страница 21: ...rm raised from the forward end When the desired chain tension is arrived at carefully retighten the bolts REAR WHEEL ADJUSTMENT GAUGE On the right hand side of the bottom chain stay will be found a pi...

Страница 22: ...el will then fall out of the slots in fork ends When the wheel is replaced see that the brake anchor pin is screwed in tightly and the spindle nuts are tight IMPORTANT INSTRUCTIONS WHICH MUST BE CAREF...

Страница 23: ...d side of the forks looking at the machine from the front see Illustration and turn the spindles by means of the heads on the left hand side until all slackness is taken up Afterwards tighten up lock...

Страница 24: ...3638 3876 4118 4364 4606 4848 4 239 517 775 1034 1293 1550 1810 2068 2327 2586 2845 3100 3359 3620 3879 4136 4395 4654 4913 5172 4 275 549 824 1098 1373 1648 1923 2196 2471 2747 3022 3296 3571 3846 4...

Страница 25: ...combined when carrying more persons or a greater weight than that for which the machine was designed by the manufacturers 3 The attaching of a sidecar to a motor cycle by any form of attachment not pr...

Страница 26: ...w w w a j s m a t c h l e s s i n f o...

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