Operator`s manual

Maintenance RD 27
wc_tx000426gb.fm 58
5.12 Hydraulic Oil
See Graphic: wc_gr002219
Hydraulic oil level
5.12.1 Stop the machine, apply the parking brake and switch off the engine.
5.12.2 Check the level in the sight gauge (a) on the left side of the tank. Check
the oil level with the machine standing on a level surface. Maintain the
oil level to the mark on the sight gauge.
5.12.3 If the level is low, top up through the filler (c).
CAUTION: Only use oil which meets the standards specified in the
table of recommended lubricants.
Hydraulic oil cooler
5.12.4 Stop the machine, apply the parking brake and switch off the engine.
5.12.5 Open the engine hood.
5.12.6 Clean the hydraulic oil cooler (e).
5.12.7 Clean the oil cooler fins using compressed air, high pressure water or
steam. Do not knock the fins. Knocking will bend the fins.
Hydraulic oil change
5.12.8 Stop the machine, apply the parking brake and switch off the engine.
5.12.9 Open the engine hood.
5.12.10 Remove hydraulic tank filler cap (c).
5.12.11 Remove the screen from the filler tube of the tank.
5.12.12 Wash the screen and filler cap in clean, nonflammable solvent.
5.12.13 Check the vent (d) for the hydraulic tank. Wash with a clean,
nonflammable solvent.
5.12.14 Open the drain for the tank (b) and drain into a suitable container (g).
Note: Collect, store and dispose of all used oil in accordance with
current environmental protection regulations.
5.12.15 Remove the suction strainer inside the hydraulic tank. The strainer is
removed by unscrewing the large coupling on the outside lower left
corner of the tank. Using Loctite 575 or equivalent on threads, install a
new suction strainer in the hydraulic tank.
5.12.16 Close the drain for the tank (b).
5.12.17 Install the screen into the filler tube of the tank.
5.12.18 Refill the tank with clean, filtered hydraulic oil. Check the oil level in the
sight gauge. Maintain the oil level to the mark on the sight gauge.
CAUTION: The hydraulic system is not designed to accommodate
biodegradeable oil.