Zetor 3320 Operator's Manual Supplement page 16

SERVICE BRAKES
Check the brake fluid level in the brake
fluid expansion reservoir. Inspect the
brake and clutch circuit for leaks if loss
of brake fluid level.
PREVENTIVE DAILY SERVICE
S3
AIR BRAKES
Inspect the air brake system leak and
tractor break efficiency with trailer (see
„inspection for air brake leak").
16
S33
STEERING
- check the oil level in the hydrostatic
steering oil tank by dipstick
- check and retorque bolts and nuts of
steering tie-rods and arms
- inspect status of hydrostatic steering
circuit hoses for damage and oil leak
S4