Inspecting The Scissor Mechanism - HOLLAND LIFT HL-140 E12 Instruction Manual

HL-140 E12 / HL-160 E12 / HL-190 E12 / HL-220 E12
N-120EL12 / N-140EL12 / N-165EL12 / N-195EL12
Rev. F

Inspecting the scissor mechanism

7.3.5
The scissor mechanism's pivot points must be checked for play, wear and damage by an expert
every five years. A pivot point will be rejected if one or more of the following rejection criteria apply to
the shaft or the bearing.
Rejection criteria:
The shaft or the bearing has visible damage.

The surface roughness of the shaft or the bearing exceeds 1 m.

The chrome layer on the shaft is damaged.

The depth of the bearing's grease chamber is less than 0.40 mm.

The shaft or the bearing is not sufficiently lubricated.

The shaft or the bearing has seized.

The play between the shaft and the bearing is greater than the specified limit (see table

below).
Shaft diameter
(mm)
120 f7
100 f7
90 f7
75 f7
60 f7
Page 47
Clearance F7
(m)
-43
-83
-36
-71
-36
-71
-30
-60
-30
-60
Bearing - inner
diameter
(mm)
120 H9
100 H9
90 H9
75 H9
60 H9
Clearance H9
(m)
+100
0
+87
0
+87
0
+74
0
+74
0
8/2/18