Kverneland H Series, Technical & Service Manual

Page: 29 / 52

29
29
2. Assembly
• Tools : Fork wrench n°13-17-19, comparator,
Dynamometric wrench, pipe, hammer
• Test the right mesh between gears, use (Prussian blue) on the gear’s teething.
• Assemble pre-mounted flange (16), bolts (28)
• Rotate pinion shaft (11) and lock the crown wheel.
• Verify the mesh between gears, (see page 13).
• The backlash value must be 0.23÷0.62 mm.
• To have the correct back lash,change shims setting
(4)(14) fig. 2.2 and 2.4 (if you change the shims
set you also will have to re-set the preload).
• Disassemble bolts (28), flange (16) put a Silicone
between housing and flange contact surfaces.
• Put a Loctite 243 film on bolts’ thread (28)
• Assemble flange (16), bolts (28) and tighten to 7÷9 kgm.
• Put an adhesive on pinion shaft splines, to avoid
any damage to oil seals lips.
• Assemble oil seals (1) and cap (8)
• Assemble oil plugs (10) and tighten 3 kgm max.
• Assemble copper washers (24), bolts (12) and tighten to 3 kgm.
• In order to prevent any leak of oil, make the
following test: insufflate from the hole plug (29)
to pressure bar 0.35 and put the gearbox in a
tank you can verify any pressure drop with a
manometer assembled on hole plug (10),
(scale 0.6 bar) for 10 minute.
• Dry the gearbox.
• Fill the gearbox with oil SAE 90EP.
• Assemble plug (29) and tighten to 3 kgm. max
• Assemble shim (14) outer ring (15),(20)
• Assemble cap (7) snap ring (9) inside crown wheel (6).
• Assemble inner ring (15) crown wheel(6)
• Assemble pre-mounted crown wheel (6)
inner ring (20) and snap ring (22).
• Check reload value ( K ) use torquemeter
• Disassemble snap ring (22).
• Assemble shims (17),(23) snap ring (22)
• Hit the crown wheel (6), from both sides
• Check axis preload ( W ), use torquemeter
• The difference between (W) and (K) must be11÷27 kgcm.
• Assemble o-ring (13) and oil seals (19 )
inside cover (21)
• Put a grease inside two oil seals (19)
• Assemble pre-mounted cover (21)
• Assemble snap ring (18).