- It is the simplest too oldest type of gear box.
- The clutch gear is rigidly fixed to the clutch shaft.
- The clutch gear ever remains connected to the campaign gear of countershaft.
- The other lay shaft gears are likewise rigidly fixed amongst it.
- Two gears are mounted on the primary shaft too tin plough over the sack survive sliding yesteryear shifter dyad when shifter is operated.
- One gear is bit speed gear too the other is the starting fourth dimension too contrary speed gears. All gears used are spur gears.
- A contrary idler gear is mounted on some other shaft too ever remains connected to contrary gear of counter shaft.
By operating gearshift lever, the larger gear on primary shaft is made to slide too meshing amongst starting fourth dimension gear of countershaft. The primary shaft turns inwards the same administration every bit clutch shaft inwards the ratio of 3:1.
SECOND GEAR:
By operating gear shift lever, the smaller gear on the primary shaft is made to slide too meshing amongst bit gear of counter shaft. Influenza A virus subtype H5N1 gear reduction of around 2:1 is obtained.
TOP GEAR:
By operating gearshift lever, the combined bit speed gear too summit speed gear is forced axially against clutch shaft gear. External teeth on clutch gear meshing amongst internal teeth on summit gear too the gear ratio is 1:1.
REVERSE GEAR:
By operating gearshift lever, the larger gear of primary shaft is meshed amongst contrary idler gear. The contrary idler gear is ever on the meshing amongst counter shaft contrary gear. Interposing the idler gear, betwixt contrary too primary shaft gear, the primary shaft turns inwards a administration opposite to clutch shaft.w
NEUTRAL GEAR:
When engine is running too the clutch is engaged, clutch shaft gear drives the campaign gear of the lay shaft too therefore lay shaft likewise rotates. But the primary shaft remains stationary every bit no gears inwards primary shaft are engaged amongst lay shaft gears.
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