TECALEMIT TEC 4000, Installation, Operation And Maintenance Instructions

Page: 10 / 24

5. Remove the axle holding the cylinder and cable
pulleys in the track. Carefully support the cylinder.
Place cylinder on a clean bench.
6. Wrap the cylinder rod thread with masking tape.
Undo the cylinder gland and slide it off the rod,
taking great care not to let the rod drop down.
Extract rod from the cylinder. Be very careful, as the
piston passes over the thread inside the cylinder.
7. Examine and renew defective seals. Check piston
rod and cylinder walls for signs of scoring or flaking.
Renew if necessary. Thoroughly clean all parts.
8. Reassembly is a reversal of removal procedure, but
ensure all cylinder parts are clinically clean before
assembly. Lightly oil seals before fitting.
9. Tighten Nyloc nut to 105 Nm (75-80 ft lbs) torque.
Check cables are not twisted.
10.Switch on isolator, raise and lower hoist several
times to expel air from the cylinder. Top up the
reservoir.
Check the cylinder is free from leaks.
Hydraulic pump removal
To repair the hydraulic pump, the reservoir must be
removed. The pressure relief, check, and solenoid
valve are accessible without removing the reservoir.
1. Lower the hoist fully. Switch off and lock the isolator
switch.
2. Undo the four screws holding the top of the
reservoir to the main body and remove the reservoir.
3. The pump is now accessible for cleaning or repair
as necessary.
4. Installation is a reversal of the removal procedure.
Take care to ensure all parts are clinically clean.
5. Switch on isolator. Raise and lower hoist several
times to expel any air and ensure proper operation.
Check oil level.
Hydraulic hose replacement
If the hydraulic hose should burst, the flow control
valve at the cylinder will prevent the hoist from falling.
The hoist will lower at the normal speed
1. Option (a) if it is necessary to remove a vehicle
from the hoist urgently, disengage the column
hooks and lower the hoist to the floor (If possible).
Try to catch as much oil as possible.
After the hoist is lowered, remove the vehicle. Now
jack the hoist up to gain access to the hose under
the power track. Place supports under the track.
Clean up the spilt oil.
Option (b) If the hoist does not need to be lowered,
then engage the column hooks (and interlock pins),
and let the hoist lower until it is supported by the
hooks. Check engagement of the hooks visually.
Clean up the spilt oil.
2. With the hoist securely supported, switch off and
lock the isolator switch.
Disconnect the hose at both ends by undoing the
swivel nuts. Cut the four cable ties and remove the
clamp bracket, remove the hose and the plastic
sleeve from the hoist.
3. Remove the reducing bush, (and flow control valve)
and the sleeve and bracket from the burst hose.
Fit the parts to the new hose. Apply thread sealant
to the 1/4” BSP male end of the hose then fit and
tighten the reducing bush.
4. Feed the hose back into the track.
Connect the column end of the hose and tighten.
This will orientate the hose. Now connect the hose
at the cylinder end, making sure the hose is not
twisted when tightening the swivel nut.
Check the hose hangs straight down beside the
column and is not rubbing on it.
5. Position the plastic sleeve to protect the hose from
the edges of the hole in the track. Refit the four
cable ties and the clamp bracket.
6. Switch on the isolator then raise the hoist off its
supports. Raise and lower the hoist several times to
expel any air, and top up the reservoir.