JD 7X30 COUGAR ROT Maintenance Section 4-5
MAINTENANCE
WEEKLY OR EVER Y 50 HOURS

ITEM SERVICE COMMENTS

In Tank Hyd. Fluid Change Change after first 50
Filter hours only, then every
(10 micron filter) 500 hours or yearly
In-Line High Pressure Change Change after first 50
Filter hours only, then every
(10 micron filter) 500 hours or yearly
MONTHLY OR EVER Y 150 HOURS
Hydraulic Fluid Level Check Add as needed
Hyd. Tank Breather Clean / Check / Replace Clean or replace
Element as required
Rear Tire Type Max P.S.I.
480/80R38 29
18.4-34 26
18.4-38 26
YEARLY OR EVER Y 500 HOURS
Spindle Grease Change
Hyd. Tank Fluid Change
In Tank Hyd. Fluid Change
Filter
(10 micron filter)
In-Line High Pressure Change or Change when indicated
Filter by restriction indicator.
(10 micron filter)
Hyd. Tank Breather Change
TROUBLESHOOTING

SYMPTOMS CAUSE REMEDY

Vibration 1. Loose bolts 1. Check all bolts and tighten to
recommended torque specs.
2. Cutter assembly 2a. Check for damaged blades, disc.
Unbalanced or cutter shaft. Replace if needed.
2b. Check for wire, rope, etc.
entangled in cutter assembly
Mower will not lift 1. Hyd. Fluid low 1. Check and refill Hyd Fluid
2. Leaks in line 2. Tighten or replace fittings and hoses
3. Faulty relief valve3. Check pressure in line. Line
pressure in Control Valve should be
at least 2500 P.S.I.
4. Kinked or blocked 4. Clean or replace lines
5. Faulty cylinder 5. Inspect, repair or replace cylinder