Tiger Products Co., Ltd JD 72-7520 manual Maintenance Weekly or Every 50 Hours, Troubleshooting

MAINTENANCE

WEEKLY OR EVERY 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 EVERY 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 EVERY 500 HOURS
Spindle Grease	Change
Motor to Spindle Spline	Change
Hyd. Tank Fluid	Change
In Tank Hyd. Fluid Filter	Change
(10 micron filter)
In-Line HP Filter	Change		or	Change when indicated
(10 micron filter)				by restriction indicator.
Hyd. Tank Breather	Change
TROUBLESHOOTING
SYMPTOMS		CAUSE		REMEDY
Vibration	1.	Loose bolts	1.	Check all bolts and tighten to
				torque specs. in this section.
	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 valve 3.		Check pressure in line. Line
				pressure in Control Valve should be
				at least 2500 P.S.I.
	4.	Kinked / blocked	4.	Clean or replace lines
	5.	Faulty cylinder	5.	Inspect, repair or replace cylinder

Maintenance Section 4-4