Zetor Proxima 70 2012, Operator'S Manual

Page: 115 / 214

114
WHEEL TREAD CHANGE
509
CHANGE OF REAR WHEEL TREAD
Used tires Tire width
in mm
Adjustable
tread
12,4-36 315 1350 - 1800
13,6-36 348 1350 - 1800
14,9-28 315 1425 - 1800
14,9R28 378 1425 - 1800
16,9-28 429 1425 - 1800
16,9R28 429 1425 - 1800
16,9-30 429 1425 - 1800
16,9R30 429 1425 - 1800
480/70R30 479 1425 - 1800
18,4 -30 467 1500 - 1800
18,4 R30 468 1500 - 1800
16,9-34 429 1425 - 1800
16,9R34 429 1425 - 1800
480/70R34 429 1425 - 1800
18,4-34 467 1500 - 1800
18,4R34 467 1500 - 1800
As standard, the tread 1500 mm is set at the production plant.
Setting of rear wheel treads is made by changing the rim and disc positions with lifted
rear part of the tractor. It is necessary so that free turning of wheels could be
enabled.
Before lifting don’t forget to secure the tractor against movement by blocking
the front wheels!
After tread changing tighten all screws connecting the disc with the rim by torque
200 - 220 Nm and nuts of screws connecting the disc with the wheel shaft by torque
400 - 470 Nm.
−
Retighten screws to the prescribed level after each loosening of rim connection.
−
Retighten connections again to the prescribed torque after driving the distance 100
m with unloaded tractor.
−
Retighten connections after 3 hours of operation with loaded tractor.
−
After 10 hours again check tightening of disc nuts and rim connections.
−
Up to operating the first 100 hours frequently check tightening of disc nuts and rim
connections at front and rear wheels (minimally 6-times within first 100 hours).
−
Then after each 100 operation hours check again tightening of disc nuts and rim
connections at the front and rear wheels.