Bolton Tools BT1340G/1, Operation Manual, Page: 25 / 55

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9.TROUBLE SHOOTING
TROUBLE PROBABLE CAUSES REMEDY
Overheat of
headstock
bearing
1.Oil level in headstock is
too low or too high.
Check the oil level and
replenish or discharge
the oil to the proper
level.
2.Quality and viscosity of oil
is wrong.
Replace the oil with
recommended one.
3.Oil is too dirty Replace oil.
4.Oil hole in bearing
obstructed by dirt.
Remove the dirt from
the oil hole.
5.Bearing obstructed by dirt Clean the bearing and
renew it.
6.Badly worn bearing. Replace bearing.
7.Bearing in its not improper
position.
Dismantle and
reassemble it.
8.Bent or sprung main
spindle.
Replace main spindle.
9.Too much end thrust. Adjust thrust nut.
Oil leakage from
gear box.
10.Plug of drain not tightly. Remove, recement
threat; replace and
tighten.
11.Headstock cracking. Repaired special
welding.
12.Leakage from overflow
headstock cover.
Tighten cover screw or
replace gasket.
13.Leakage from overflow
spindle bearing house.
Replace oil ring.
Excess noise of
vibration of
machine
14.Badly worn bearing. Replace bearing.
15.badly worn gear. Replace gear.
16.Bent or sprung shaft. Replace shaft.
17.Lose of foundation bolts. Tight foundation bolts.