35
_________________________________________________________________________________
9.3 Greasing
Greasing of the machine is of utmost importance to prevent wear in joints. Most of the joints are
service free - however the slewing ring must be greased in accordance with the maintenance
schedule, using grease that contains EP (extreme pressure) additive. Outrigger bearings and
articulation bearings in all hydraulic cylinders must be greased in accordance with the maintenance
schedule.
9.3.1 Greasing of the slew ring
The slewing ring of the access platform must be greased monthly, according to the maintenance
schedule. It is important to notice that the slewing ring has five (5) separate greasing points
(Figure 15) which all must be greased individually. The grease nipples on the outside of the slewing
ring are connected to the gear and its bearings. Two (2) grease nipples on the inside of the slewing
ring are connected to the r
ing’s ball bearings. Easiest way to apply grease on these two grease
nipples is through the service hatch on the bottom of the chassis.
Figure 15: Slewing ring greasing
9.3.2 Greasing the telescopic boom chain pulley and inspection of the chain
A pair of leaf chains is used for telescopic boom movement. There are 3 pulleys which require
greasing. Pulleys are greased monthly.
Figure 17: Leaf chain pulley greasing points in the front
side of the 2
nd
boom.
Grease nipples are located on both ends of the telescopic boom. One grease nipple is located under
the telescopic boom in the platform end of the boom (Figure 16). Two more nipples are located under
a protective cover in the front side of the 2
nd
boom.
Figure 16: Telescoping
chain pulley grease nipple
