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6.4 REPLACING THE HYDRAULIC PUMP
The two hydraulic pumps are located inside the chassis
in front of the engine. The pumps are maintenance free
and should be replaced in the event of a failure. See
Figure 15.
To Replace a Hydraulic Pump
1. Lift cover to full service position.
2. Remove the cross channel.
3. Clean hoses and fittings and mark for location.
4. Disconnect hoses from pump.
5. Loosen belt from pulley.
6. Remove bolt and washers from end of shaft.
7. Loosen pulley lock bolt and slide pulley from shaft.
Remove and inspect square key. Replace key if
damaged.
8. Remove back bolt on pump and loosen front bolt.
9. Remove pump.
10.Insert the new pump into position with the front bolt
in the mounting flange slot.
11.Insert rear bolt and tighten both bolts.
12.Attach hydraulic hoses to correct ports and tighten.
13.Position square key in shaft keyway and slide
pulley into position.
14.Screw the bolt, washer and lock washer into the
end of the shaft. Tighten securely.
15.Tighten pulley lock bolt.
16.Place belt on pulley.
17.Replace cross channel.
18.Lower the cover and start the engine. Run the
engine for 1 - 2 minutes. After shutting off the
engine, check the hydraulic fluid level. The dipstick
should read between the high and low markings.
1. Hydrostat BDP Pump
2. Variable-Displace Pump
Figure 15
1
2
CAUTION: Some fluid will leak out. Clean up
any spills.
