Replacing The Hydraulic Fluid Filter; Changing The Hydraulic System Fluid - Toro 30789 Operator's Manual

5. Remove wheel nuts and slide wheel and tire assembly
off studs. Rotate brake drum until adjusting slot is at
bottom and centered over star nut that adjusts brake
shoes (Fig. 45).
Figure 45
1. Slot
6. Using a brake adjusting tool or screwdriver, rotate star
nut (Fig. 45) down until brake drum (Fig. 46) locks
because of outward pressure of brake shoes (Fig. 46).
2
1
Figure 46
1. Star nut
7. Loosen star nut about 12 to 15 notches or until brake
drum rotates freely.
8. Install wheel and tire assembly on studs with five wheel
nuts. Tighten nuts to 45-55 ft–lb (61-75 N m).
9. Remove jack stands or blocking and lower machine to
the shop floor.
10. Adjust the brake cables using step 1.
2
2. Brake shoes
40
Replacing the Hydraulic Fluid
Filter
The hydraulic fluid filter keeps the hydraulic system
relatively free of contaminants and must be serviced at
regular intervals. Initially, change filter after first ten
hours of engine operation, and thereafter, after every
200 hours of operation or yearly, whichever comes first.
Use Toro oil filter, Part No. 23-9740, as a replacement.
1. Clean area where hydraulic fluid filter mounts. Remove
filter from base (Fig. 47) and clean filter mounting
surface.
1
Figure 47
1. Hydraulic oil filter
2. Lubricate filter gasket with proper type of hydraulic
fluid. Then fill filter using the same hydraulic fluid.
3. Install filter by hand until gasket contacts mounting
head. Then rotate an additional 1/2 turn.
4. Start engine and check for hydraulic fluid leaks. Allow
engine to run for about two minutes so any air in the
system is purged (removed).
5. Shut engine off and check level of hydraulic system;
refer to Checking the Hydraulic System Oil, page 21.
Changing the Hydraulic
System Fluid
The hydraulic system fluid must be changed after every
1000 hours of normal operation or every two years,
whichever comes first.
The following list is not assumed to be all–inclusive.
Hydraulic fluids produced by other manufacturers may be
used if they can cross reference to find an equivalent to the
products listed. Toro will not assume responsibility for
damage caused by improper substitutions, so use only
products from reputable manufacturers who will stand
behind their recommendation.