13. Pay increased attention when replacing the towing axle with the cultivator and vice versa if the gearbox is warmed up
since dust caps and guferos on the output shaft may shoot out after the axle shafts or knife rosebits have been dismounted.
V. INSTRUCTIONS FOR USE.
Gearbox Model T-20 A can be used as a primary group for one-axle tractor (Fig. 2) or rotary cultivator for active soil
cultivation (Fig. 8).
FIGURE 2
MULTI-PURPOSE ONE-AXLE TRACTOR
Gearbox T–20 A
Towing axle TN–03 or TN–06
Driving unit JM 4–003
Assembling the one-axle tractor: Axle shaft head must be at all times on the right side of the gearbox (viewed from driver’s
site). Herringbone pattern of the tire must be in the travel direction. Slide the axle shaft for respective axle track into the hole in
the right wheel hub. Place the wheel on a clean and firm support with the axle shaft pointing upwards. Then mount a spacer for
the desired track and mount the gearbox so that the gearshift lever is on the top. Mount the second spacer and turn the left
wheel and the assembly so that the machine stands on wheels. Mount the washer with the hexagonal, screw on the lock nut and
tighten the whole towing axle by tightening the axle shaft. The axle shaft must be properly tightened so that the pressing out of
hexagonal surfaces on the output shaft and in the spacers cannot occur. The assembly procedure in putting together the one-
axle tractor for working with implements, when reverse gear is used as gear forward, is similar an only variance being the fact
that the gearbox is to be mounted onto the axle shaft so that the gearshift lever is down (Fig. 4).
FIGURE 3 FIGURE 4
Gearbox assembly Gearbox assembly
for transport for working with implements
Split pin
Nut
Washer
Axle
shaft
Left side
Left wheel
Right side
Right wheel
Fixed support
Travel direction