11. Chec k the fluid lev el in the h y draulic tank (refer
to Chec king the Hy draulic Fluid in Operation ,
pag e 21 ) and add fluid to raise the lev el to mark
on dipstic k. Do not o v er fill the tank.
12. Close the rear access co v er .
Changing the Hydraulic
Fluid
Chang e the h y draulic fluid after ev er y 400
operating hours or yearly .
1. P osition the traction unit on a lev el surface .
2. Open the hood.
3. Install the cylinder loc k, stop the engine , and
remo v e the k ey .
4. Allo w the traction unit to cool completely .
5. R emo v e the h y draulic tank cap and dipstic k
( Figure 57 ).
Note: T he filler cap is behind the front
screen. If y ou w ant to impro v e y our access to
it, remo v e the screen.
Figure 57
1. Filler neck 2. Dip stick
6. Place a larg e drain pain (capable of holding 15
US g allons) under the drain plug on the front
of the traction unit ( Figure 58 ).
Figure 58
1. Drain plug
7. R emo v e the drain plug and allo w the oil to
drain into the pan ( Figure 58 ).
8. W hen finished, install and tighten the drain
plug .
Note: Dispose of the used oil at a cer tified
recycling center .
9. Fill the h y draulic tank with appro ximately
12 US g allons (45.4 l) of 10W -30 or 15W -40
deterg ent, diesel engine oil (API ser vice CH-4
or higher); refer to Chec king Hy draulic Fluid
in Operation , pag e 21 .
10. Star t the engine and let it r un for a few min utes .
11. Stop the engine .
12. Chec k the h y draulic fluid lev el and top it off if
necessar y; refer to Chec king Hy draulic Fluid
in Operation , pag e 21 .
13. Close the hood.
Checking the Hydraulic
Lines
After ev er y 100 operating hours , c hec k the
h y draulic lines and hoses for leaks , loose fittings ,
kink ed lines , loose mounting suppor ts , w ear ,
w eather , and c hemical deterioration. R e place all
mo ving h y draulic hoses ev er y 1500 hours or 2
years , whic h ev er comes first. Mak e necessar y
re pairs before operating .
45
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