SERVICE AND REPAIRS
Wire rope inspection
The design of this hoist allows a complete inspection of
the full length of each wire rope without removal from
the hoist. Conditions to look for include crushing,
deforming or kinking, corrosion, excess wear, or if
more than 15 broken wires can be seen in any 90 mm
(3.5 in.) length of cable.
1. With the hoist fully lowered, wipe the cables in the
columns clean with a solvent-soaked cloth and
inspect. Mark with chalk.
2. Raise the hoist 1 metre (1.15 m to top of track).
Clean and check the cables in the crossmember
between the tracks and under the power track.
Mark with chalk.
3. Raise the hoist to full height. Clean and check the
wire ropes in the crossmembers between the tracks
and under the power track - this will cover the
remaining sections.
Should any single wire rope need replacing, the
complete set should be replaced. Wire rope
specification: 6 x 25 (12/6 +6F/1) independent wire
rope core, right hand ordinary lay, grade 2070 Mpa,
galvanised, 11 mm diameter.
Wire rope replacement
1. Remove covers from crossmembers and columns.
2. Raise hoist approximately 1.5 m. Engage column
hooks (and interlock pins) then lower hoist until
supported by hooks. Check engagement.
3. Switch off and lock the isolator switch.
4. Remove the cable retainer nuts from below the
cable pulleys in the ends of the crossmembers.
5. Remove the cable adjusting nuts from the top of
each column.
6. Remove the axles at both ends of the power track.
Remove the pulleys at both ends, noting the
position of thrust washers and spacers. Take care
to support the cylinder when the pulleys are
removed.
7. Remove the cable retaining plates from the cable
anchor plate on the end of the cylinder. Remove
the cables from their slots one at a time, noting their
positions.
8. Pull the cables out of the top of each column.
9. Feed the new cable through the top of each
column, around the crossmember pulley and into
the power track.
10.Refit the cables to the cable anchor plate and fit
the retaining plates.
11.Refit the track pulleys, spacers, thrust washers and
cylinder, nesting the cables in their respective pulley
grooves. Refit the axles and retain with plates and
screws (refer Fig. 2).
12.Fit cable adjusting nuts to each cable on top of
each column.
13.Check that the cables are not twisted or crossed
over and are running in the grooves of all pulleys.
14.Switch on isolator and raise hoist to unload the
column hooks. Check that the clutches are not
engaged. Tighten cables if necessary.
15.Refit the cable retainer nuts, button head cap
screws and shake proof washers to the ends of the
crossmembers.
16.Lower the hoist to the floor, checking that the
clutches do not engage.
17.With the down switch held on, adjust the four cables
until the crossmembers just start to lift off the
column base plate. Lock the adjusting nuts
together.
18.Place the heaviest available vehicle (4 tonne
maximum) on the hoist and raise and lower the
hoist several times. Check the hoist is level and that
none of the clutches engage. Tension cables if
necessary.
19.Lubricate the cables, clutch rods and clutch
actuator pulleys. Refit crossmember and column
covers.
Cylinder removal
If oil is leaking from the cylinder breather or from
around the piston rod, the seals must be replaced.
1. Raise the hoist to a comfortable working height.
Engage the column hooks (and interlock pins) then
lower hoist until supported by the hooks. Check
engagement of the hooks.
2. Switch off and lock the isolator switch.
3. Disconnect the hydraulic hose from the cylinder.
Catch oil in a clean container under the cylinder.
Remove the four cable ties on the cylinder.
4. Extend the cylinder to drain the oil. Slide the cable
anchor plate along the cylinder rod to expose the
spanner flats and remove the Nyloc nut and cable
anchor plate.
Page 8
Содержание TEC 4000
Страница 1: ...4000 4 Post 4 Tonne Hoist TEC4000 TEC4011 Wheels Free Beams...
Страница 17: ...88 106 85 87 86 103 104 105 102 101 90 92 91 100 99 95 88 89 91 92 90 96 96a 97 98 94 93 FIG 3 Page 16 107...
Страница 18: ......
Страница 19: ......
Страница 23: ...Page 22 Note...