Finn HydroSeeder TITAN280, Operator Instructions And Parts Manual

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34
HYDRAULIC SYSTEM
The hydraulic system on your FINN HydroSeeder® is designed to give trouble free service, if main-
tained. The most important areas of maintenance are the hydraulic oil and filtration. The reservoir
holds 60 gal (227 L) of Mobil DTE-13M or equivalent hydraulic oil.The hydraulic oil should be replaced
per the lubrication schedule or if the oil becomes milky or it gives off a burnt odor. The hydraulic oil
filter must be replaced on schedule with a 25 micron absolute filter (FINN part number 011869). The
hydraulic system relief is factory set at 3,200 psi (22,063 kPa).
CLUMP MAINTENANCE SECTION
CAUTION
Clump maintenance should be done only while engine is not running and battery cables are
disconnected. Failure to comply could result in minor or moderate personal injury. Failure to
comply could also result in product or property damage.
NOTE:
Refer to Figure 18 on page 36 for all in-text callouts
on pages 34 and 35.
A. FACTORY TOLERANCES
1. To check clump tolerances, loosen the two clamps on the pump suction piping and remove the
inlet elbow. Through the pump suction hole, insert a feeler gauge between impeller (3) and suc-
tion cover (1). This measurement on a new clump is between 0.30 to 0.40 in. (.750 to 1.00 mm).
B. IMPELLER CLEARANCE
NOTICE
Tightening of the bolts should be performed in a criss-cross pattern. DO NOT TIGHTEN OVER 15 lb-ft
(20 N•m). Overtightening will crack the flange of the pump suction cover.
TO BRING THE CLUMP BACK TO PROPER TOLERANCE, PROCEED AS FOLLOWS:
1. Loosen twelve bolts (16) and push pump housing (1) into seal housing (6) until it hits the impel-
ler (3). Impeller should be in full contact with pump housing.
2. Tighten bolts (17) finger tight. Impeller (3) should rub the wear plate (2) and not turn easily
through one revolution.
3. Tighten bolts (16) hand tight until they touch pump casing (1).
4. Back off bolts (17) 2 turns.
5. Tighten bolts (16) 3/4 turn and tighten nuts (14) to 15 lb-ft (20 N•m).
6. Tighten bolts (17) to 15 lb-ft (20 N•m). Clearance gap should be about 0.040 in. (1.00 mm).
Check to see if impeller (3) turns freely through one revolution.
C. CLEANING
1. To clean impeller (3), loosen the two victaulic pipe clamps and remove the suction pipe assem-
bly. The eye of the impeller (3) can then be seen through the pump housing (1) and is readily
accessible for cleaning.