Model TA50RT
Rev. 1 04/99
5
5 - 7
MAINTENANCE SCHEDULES
5.2.3. MONTHLY
In addition to the weekly checks, carry out the following:-
(a) Check for hydraulic oil contamination.
(b) Check chassis mounting bolts.
(c) Grease slewing ring teeth.
(d) Check rotation gearbox oil level.
(e) Lubricate all small pivots throughout the machine.
(f) Ensure all boom/cylinder pins are positively secured in position.
(g) Check drive gearbox and axle oil levels.
(h) Torque wheel nuts to that specified in the torque chart (ref. Figure 2.1)
(i) Check that boom lock valves are functioning. Switch off unit and operate spool.
(j) Check structure for any obvious defects.
(k) Check emergency pump operation.
(l) Check condition of the slave cylinder.
(m) Check all bushes for wear. Elevate the booms and check each pin in turn for rotation or movement.
If wear is detected, the bush may need to be replaced. The pins and bushes have been specially
treated and should only require lubrication at 4 yearly intervals. Under certain conditions, lubrication
may be required more frequently.
(n) Check the slew bearing for any obvious defects. Generally, no user maintenance to the slew bearing is
possible. The replacement of the slew bearing is a major operation and advice should be sought from
Terex Aerials Ltd. Checks must be made to ensure that all securing bolts are tight. Any bolts found
loose or sheared must be replaced. Slew ring play is measured at the perimeter of the ring and the
maximum rock allowed is 1.7mm (refer to Fig 5.1)
(o) Check and maintain the superstructure as follows:-
(i) Steam clean the superstructure and inspect all welds and brackets.
(ii) Check for pins turning in their mountings. This will indicate sheared pin lock bolt. Refer to pin
replacement procedures.
To Next Page
Loading...
