Vari T-20 A Manual Download Page 8

becomes Gear 1 with the gearshift lever being on the right side. It is necessary to turn the gearshift lever so that it points to the 
rear of the machine toward the operator. This can be done so that the safety split pin is taken out, the gearshift lever is pulled 
out from the square journal and re-installed onto the journal in the new position (pointing to the operator) and secured once 
again with the safety split pin. 
 
FIGURE  6b 
Mounting the driving unit on gearbox Model 
T–20 SA for transport and use with rotary cultivator 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
USING GEARBOX MODEL T-20 A:
 Gearbox T-20 A can be used for working with VARI-System implements. If there is a 
towing axle mounted on the gear case, the result is a single-axle tractor. Wheels have free wheel hubs with a spring-loaded free 
wheel finger to enable four free wheel positions. Finger positions are illustrated in Fig. 7. 
 
FIGURE  7 
Free wheel finger positions 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
POSITION LOCKED: at this position the wheel is firmly connected with the hub. Finger linkage tip points either into the 
wheel centre or from the wheel centre out. The position serves for straight travel forward or back. Turning the machine set at 
this position is however difficult. 
POSITION FREE RUNNING FORWARD: at this position of the finger with the wheel turning forward the wheel is firmly 
connected with the hub. When the wheel turns back or in the situation when the wheel turns faster than the axle, angular plane 
on the finger will enable the finger to jump out from the incision in the hub, which is indicated by a clapping sound. Finger 

Travel direction 

Position locked 

Position free running forward 

Position free running back 

Position idle running 

Travel direction 

Summary of Contents for T-20 A

Page 1: ...GEARBOX T 20 A MULTI PURPOSE GEARBOX FOR SINGLE AXLE TRACTOR AND ROTARY CULTIVATOR...

Page 2: ...I Technical data IV Safety regulations V Instructions for use VI Handling and maintenance VII Storage VIII List of components IX Warranty terms X Instructions for ordering spare parts Warranty for the...

Page 3: ...es and attachments made as a system of small farming and gardening technology by joint stock company VARI LIBICE nad CIDLINOU and labelled The system is meant for gardeners small growers and farmers o...

Page 4: ...f gears is ensured by a spring mounted ball which falls into a recess in the shift gate Teethed reverse gear is mounted on needle bearings on a fixed pivot Clutch disk is mounted on the end of the lay...

Page 5: ...ree No 99 89 Gaz issued by the Federal Ministry of Interior the operator is obliged to apply for a permission at the police traffic inspectorate which determines further conditions for the machine set...

Page 6: ...lean 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 th...

Page 7: ...of the gear case The pivot on the handlebar console falls into the hole in the case The shape of the upper part of the gear case makes it possible to mount the driving unit onto the case in two ways T...

Page 8: ...hubs with a spring loaded free wheel finger to enable four free wheel positions Finger positions are illustrated in Fig 7 FIGURE 7 Free wheel finger positions POSITION LOCKED at this position the whe...

Page 9: ...T 20 A was used in the connection with the towing axle as a multi purpose one axle tractor the suspension device BZN 004 must be dismounted Hinge Z 1 serves to connect the share carrier with the shar...

Page 10: ...f operation Oil replacement should be made when the oil is warm and can be drained from the gearbox easily The replacement is made so that the pour in plug is screwed out in the lower part of the gear...

Page 11: ...57 124 001 Shim block 2 30 110 524 Bearing 51104 SN 024730 1 31 32 0 9225 003 110 020 Shim block 1 32 110 527 Bearing 30203 SN 024720 1 33 32 0 3214 002 110 002 Worm shaft 1 34 913 0150 O ring 42x2 SN...

Page 12: ...2 0 3014 005 110 023 Layshaft 1 66 110 518 Bearing 6201 SN 024636 1 67 32 0 9016 036 110 506 Plug 1 68 32 0 9620 009 106 505 Sealing 1 69 32 0 9220 026 110 501 Ring 2 69a 106 543 Bolt M6x12 SN 011143...

Page 13: ...wheel 1 22 9 1796022A Right wheel 1 22 9 1796 024 Axle MINI 610 480 1 83 22 9 1724 007 106 515 Rim wheel 2 84 22 9 1724 008 106 516 Wheel hub 2 85 32 0 9520 006 106 042 Ring 2 86 110 532 Retaining ri...

Page 14: ...N 021411 25 1 101 32 0 9226 001 106 029 Washer 1 102 32 0 9245 001 106 524 Split pin 1 22 9 1796 027 TOWING AXLE TN 06 1 22 9 1796021B Left wheel 1 22 9 1796022B Right wheel 1 22 9 1796 024 Axle MINI...

Page 15: ...mer or by a third person 3 Warranty extincts by a breakdown of the machine or working implement which did not result from a defect incurred at the manufacturer s or from any intervention into construc...

Page 16: ...commercial customer service or technical departments are prepared to answer all your inquiries Contact to manufacturer VARI a s Telephone 420 325 607 111 Opolansk 350 Fax 420 325 607 264 Libice nad Ci...

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