Rear Wheel Setting; Backlapping - Ransomes Commander 3520 Safety, Operation & Maintenance Manual

9.4

REAR WHEEL SETTING ______________________________________________

The rear wheels should be set parallel to each other.
The wheel rims should then be the same dimension
at the front and at the rear when measured at the
halfway height .
To adjust:
(a) Loosen the locknuts (C) on the tie rod (D).
(b) Rotate tie rod (D) until the wheels are correctly
set.
(c) Re-tighten locknuts (C) securely.
9.5

BACKLAPPING _____________________________________________________

This mower is fitted with a device to allow the reels to be driven in reverse for backlapping.
• Backlapping is a process which will lightly
grind the reel to the bedknife whilst mounted
on the mower.
• If significant amounts of metal are to be removed
then the cutting unit should be reground on a
specialised grinding machine.
• Before any backlapping is carried out, Ransomes
Jacobsen recommends that the backlapping
process should be risk assessed as a workshop
process by the manager of the machine.
• Backlapping should only be carried out by trained
staff.
• Ransomes Jacobsen recommend that grinding
paste is only applied to the reel when it is stationery,
the engine is off and the parking brake applied.
• When applying grinding paste the reel should
only be rotated by appropriately sized piece of
wood and not by hand.
• Place reels in the most accessible position for applying the paste.
• Leave the grass boxes in position on the cutting units as a safety barrier.
• After applying the grinding paste the person backlapping should return to the seat, engage the relevant
controls and run the reels in reverse.
• When the desired finish is achieved switch off the mower, clean off any surplus paste, reset the reel to
bedknife and return the controls to the normal mow positions.
Ransomes Jacobsen grinding paste:
80 grit grinding paste, 4.5kg tin, Part number 5002488
120 grit grinding paste, 4.5kg tin, Part number 5002489
80 grit grinding paste, 9kg tin, Part number 5002490
120 grit grinding paste, 9kg tin, Part number 5002491
Set the hydraulic drive lever (A) into the up position for reverse drive and depress the mow foot switch, the
cutting cylinders will run in reverse.
9 ADJUSTMENTS
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