Instruction Manual, Toftejorg MultiJet 40
Page 31
IM-TE91A170-EN041
Trouble Shooting Guide
(Continued)
Possible Causes
Fault finding
e). Gearbox jammed/sluggish
Remove foreign material from Gearbox. Check
rotation of shafts. If restriction is recognized,
disassemble gearbox (see page 20) and remove
material build up, especially on 2. Stage Worm
wheel and mating Collar bushes.
f). Hub
jammed/sluggish
Disassemble
Hub
Subassembly (see page 16).
Remove foreign material inside Hub. Clean Ball
races and Ball retainer with balls. Also clean nose
of Body.
Wear
a)
Slide bearings
See page 10.
b)
Main bush
See page 11.
c)
Worm wheels
See page 11.
d)
Collar bushes
See page 10.
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 wheels. 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 gear
Inspect teeth on Stem and Hub for deformation.
Mount Hub and Stem in Body (see page 16 and
18). 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.
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