Download - Hill Engineering

Transcript
SECTION 14.4
REPLACEMENT OF THE FLAT SPRING
Refer to the parts list on page 43
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Remove the main hydraulic cylinder as detailed on Page 34.
Turn the cylinder (2) upside down so that the spring and securing bolts are facing
upwards.
Undo the socket head cap screws (14) retaining the spring (5) to the cylinder body
(2) using the correct sized hexagon key.
Remove the old spring and helpers (5) and discard.
Remove any traces of locking compound from the screw threads.
Apply thread locking compound to the threads of all screws.
Fit the new spring (5) and helpers into position and align the holes in the spring
retaining plate (15) ensuring the bevel is in the correct position.
Loosely start all retaining pins into their relative tapped holes in the base of the
cylinder.
Hold the spring square to the cylinder axis and tighten all retaining screws using
the correct sized hexagon key.
Finally torque all screws up to their correct value (see table below).
The cylinder is identified by a part number stamped into the upper side of the block
beside the hose connection ports.
Cylinder size Screw size Torque wrench setting (Nm)
3T
M8
40
5T
M10
77
7T
M12
135
13T
M14
215
20T
M16
325
25T
M16
325
35T
M20
640
65T
M16
325
100T
M16
325
Page 38 of 47 Issue 1O 04/15
Tefra manual