Alfa Laval Gunclean Toftejorg TZ-750, Instruction Manual, Page: 41 / 49

Instruction Manual, Gunclean Toftejorg TZ-750 Fixed & Portable Page 39
Standard machines and machines delivered with ATEX certification
in accordance with Directive 94/9/EC
IM-TE91A400-EN7
Trouble Shooting Guide
(continued)
Possible causes Action
e)
Gearbox jammed/sluggish
Remove foreign material from Gearbox. Check
sluggish rotation of shafts. If restriction is
recognized, disassemble gear subassembly (see
page 28) and remove material build up, especially
on 2nd stage Worm wheel and mating Collar
bushes.
f)
Hub jammed/sluggish
Disassemble Hub Subassembly (see page 24).
Remove foreign material inside Hub. Clean Ball
races and Ball retainer with balls. Also clean nose
of Body.
Wear
a)
Slide bearings See page 18 - 19.
b) Main bush See page 18 - 19.
c) Worm wheels See page 18 - 19.
d) Collar bushes See page 18 - 19.
e) Turbine shaft Check clearance in Main bush and in Slide
bearing. Transverse movement should not exceed
0,5 mm. Also inspect worm wheel for wear.
f) Horizontal shaft Check clearance in Collar bushes. Transverse
movement should not exceed 0,5 mm. Also inspect
worm for wear.
Mechanical defects
a)
Worm wheel/Teeth broken Replace Worm wheel.
b)
Worm wheel can rotate on Horizontal
shaft/Pinion due to damaged driver faces.
Replace Worm wheel.
c)
Damaged teeth on Bevel gear Inspect teeth on Stem and Bevel gear for
deformation. Mount Hub and Stem in Body (see
page 24 and 26). Hold Body in upside down
position and rotate Hub to check that Bevel gears
can work together. If damaged: Replace Stem
and/or Bevel gear.