Model TA50RT
Rev. 1 04/99
5
5 - 13
MAINTENANCE SCHEDULES
5.3.4 SIX MONTHLY ROUTINE SERVICING
5.3.4.1. Cage Levelling
Check the cage levelling system as follows:-
(a) Examine both levelling cylinders, particularly at the pivot points, for any sign of wear or damage.
Ensure that the end fittings are secure.
(b) Check cylinders and hose fittings for leaks.
5.3.4.2. Boom Pivots
The main pivots on the booms, cylinders and levelling system are fitted with corrosion-resistant pins and per-
lubricated bearings. Check the bushing for any signs of wear
The bushings are steel-backed, acetal co-polymer lined. If the bearings show any defect, they should be
replaced with the correct type. Consult Terex Aerials Ltd.
5.3.4.3. Boom Cylinders
Check the boom cylinders as follows:-
(a) Hydraulically test the cylinders at fully retracted and extended positions. Check that there is no
movement between rod and bearing housing, or between cap and tube.
(b) Check all cylinders for oil leakage.
5.3.4.4. Axle
Check the oil level in the axle
with the machine on level ground and, if necessary, top us with EP 90 oil.
5.3.4.5. Suction Filter
Change the suction filter element. This has a screw-on cartridge element and can be changed with little
loss of oil.
5.3.4.6. Machine Systems Test
Test the following systems:-
(a) Drive assembly, including drive shaft, axle, couplings, drive motor and gearbox.
(b) Slew-ring.
(c) Cage rotation worm drive.
(d) All machine functions.
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