PRONAR ZKP800, Operator'S Manual, Page: 90 / 102

Pronar ZKP800 SECTION 5
5.22
Each day check condition of raking finger connections to arms and locking cotter pins
on raking arms frame in case they have fallen out
DANGER
Before beginning preparation work switch off tractor engine and remove the key from the
ignition and engage tractor parking brake. Ensure that unauthorised persons do not
have access to the tractor.
5.9 TIGHTENING TORQUE FOR NUT AND BOLT
CONNECTIONS
Unless other tightening parameters are given, during maintenance repair work apply
appropriate torque to tightening nut and bolt connections. Recommended tightening torque of
most frequently applied nut and bolt connections are given in table (5.5). Given values apply
to non-lubricated steel bolts.
TAB. 5.5 Tightening torque for nut and bolt connections
5.8
(1)
8.8
(1)
10.9
(1)
THREAD
METRIC
MD [Nm]
M10 37 49 72
M12 64 85 125
M14 100 135 200
M16 160 210 310
M20 300 425 610
M24 530 730 1 050
M27 820 1 150 1 650
M30 1 050 1 450 2 100
(1)
– resistance class according to DIN ISO 898 standard, (M
D
) – tightening torque, (d) thread diameter
Hydraulic lines should be tightened with torque of 50 – 70 Nm.