Ammann APR 4920, Translation Of The Original Operating Instructions, Page: 66 / 160

8.1 Cleaning
•
Clean the ma chine on a daily ba sis.
•
Af ter clean ing all ca bles, hoses, con nec tions and con nec tors
are to be checked for leak age, holed con nec tions, chaf ing
points and other dam age.
•
De tec ted faults are to be eli min
•
a ted im me di ate ly.
8.2 Screw connections
8.2.1 Tighte ning tor ques
Strength classes for screws with un treated, non-lu bri cated sur -
face.
The val ues re sult in 90% uti li sa tion of the ap par ent yield ing point
at a fric tion co ef fi cient µ
ges
= 0.14.
Tight en ing torques are checked for cor rect ness us ing torque
wrenches.
When us ing lu bri cant MoS2, the spec i fied val ues do not ap ply.
L
M
2
2
0
2
0
0
0
0-
2
H
b
m
G
g
n
u t
h
ci
dr
e
V
n
n
a
m
m
A
8
1
0
2/
2
0
8. Maintenance machine
61
For clean ing, do not use any flam ma ble or ag gres -
sive ma te ri als.
When clean ing the ma chine with a pres sure
washer, do not spray the elec tri cal com po nents di -
rectly.
When clea ning the ma chi ne with a pres su re was -
her, do not hold it di rect ly over the air fil ter.
Re new self-lock ing nuts af ter each re moval.