guard and the lo w er c hain span is within 1-1/2
to 2-1/2 inc hes (3.8 to 6.35 cm) ( Figure 30 ).
7. P osition the axle retaining brac k et tight ag ainst
the axle and the frame , then tighten the n ut on
the bolt to secure it in place ( Figure 31 ) and
tor que the n ut to 30 ft-lb (40.7 N ⋅ m).
8. Tighten the n uts securing the axle retaining
brac k et and tor que them to 75 ft-lb (102 N ⋅ m).
9. R e peat ste ps 3 through 8 for the other dri v e
c hain.
10. Star t the engine and raise the buc k et to retur n
the front wheels to the g round.
Hydraulic System
Maintenance
Replacing the Hydraulic
Filter
Important: Do not substitute an automoti v e
oil filter or sev er e h y draulic system dama ge
may r esult.
Chang e the h y draulic filter after the first 8
operating hours and then ev er y 400 operating
hours thereafter .
1. P osition traction unit on a lev el surface .
2. Raise the loader ar ms and install the cylinder
loc ks , stop the engine , and remo v e the k ey .
3. Place a drain pan under the filter .
4. R emo v e the old filter ( Figure 32 ) and wipe the
surface of the filter adapter g ask et clean.
Figure 32
1. Hydraulic lter
5. Apply a thin coat h y draulic fluid to the r ubber
g ask et on the re placement filter ( Figure 32 ).
6. Install the re placement h y draulic filter onto the
filter adapter ( Figure 32 ). Tighten it cloc kwise
until the r ubber g ask et contacts the filter
adapter , then tighten the filter an additional
1/2 tur n.
7. Clean up any spilled fluid.
8. Star t the engine and let it r un for about tw o
min utes to purg e air from the system.
9. Stop the engine and c hec k for leaks .
Hy draulic fluid escaping under pr essur e
can penetrate skin and cause injur y .
F luid injected into the skin must be
surgicall y r emo v ed within a few hour s by
a doctor f amiliar with this f or m of injur y
or gang r ene may r esult.
• K eep y our body and hands a w ay fr om
pin hole leaks or nozzles that eject
high pr essur e h y draulic fluid.
• Use cardboard or paper to find
h y draulic leaks, nev er use y our hands.
10. Chec k the fluid lev el in the h y draulic tank (refer
to Chec king the Hy draulic Fluid in Operation ,
pag e 17 ) and add fluid to raise the lev el to mark
on dipstic k. Do not o v er fill the tank.
11. R emo v e and store the cylinder loc ks and lo w er
the loader ar ms .
Changing the Hydraulic
Fluid
Chang e the h y draulic fluid yearly .
1. P osition the traction unit on a lev el surface .
2. Raise the loader ar ms and install the cylinder
loc ks .
3. Stop the engine and remo v e the k ey .
4. Place a larg e drain pan under the traction unit
that can hold at least 17 US g allons (67 l).
5. R emo v e the drain plug from the bottom of the
h y draulic tank and allo w the fluid to completely
drain out.
6. Install the drain plug .
7. Fill the h y draulic tank with appro ximately
15 US g allons (57 L) of 10W -30 or 15w40
33
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