Tongue replacement (if necessary)
Beforehand, heat the spool to 200° C in an oven or, failing that, with a
heat gun. Do not use fire.
CAUTION
DO NOT USE A WELDING TORCH TO HEAT THE TONGUE AS SPOOL
DEFORMATION MAY RESULT.
WARNING
Hot spool!
Danger of burns
Wear thick protective gloves when handling the hot spool. f
Loosen the tongue (6 mm open end spanner).
Reassembly:
except of coating, apply a droplet of loctite 262 on the end of the 1.
tongue thread,
reassemble parts in reverse order,2.
torque for the tongue: 10 ± 10% N.m,3.
torque for the 2 mounting screws: 10 ± 10% N.m.4.
CAUTION
WAIT FOR 8 HOURS BEFORE USING THE MACHINE TO LET THE
LOCTITE 262 DRY COMPLETELY.
Spool stroke measurement (3 position)7.3
Move the control lever of the element in question in all possible positions,
and measure the corresponding spool stroke values at the tongue.
RE 64122-S/06.2011 | Type SM 12 Bosch Rexroth AG 21/30
Distribution element repair procedure
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