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MAINTENANCE
4.9.3
PTO (PUMP DISTRIBUTOR GEAR) - CHECK OIL LEVEL
Legend for illustration Z25884
(1)
Oil level gauge
(2)
Oil filler plug
(3)
Breather filter
(4)
Oil drain plug
(5)
Adapter housings for main hydraulic pumps
(6)
Adapter housing for pilot oil pump
(7)
Oil level plug
(8)
Oil filler plug with breather pipe
(9)
Oil drain plug
(10)
Positions of oil level gauges on PTOs manufactured by Stiebel
REMARK
Check PTO oil level just after the engine is stopped and with
the oil at operating temperature.
1. Unscrew level gauge (1) and wipe it clean. Insert gauge (1),
but DO NOT tighten, see detail (A). Remove level gauge and
read the oil level. The oil level should be between the "MIN"
and "MAX" mark. If necessary, add oil through filler opening
(2) up to the "MAX" mark on gauge (1).
REMARK
If the oil level is above the "MAX" mark, drain the oil down
until the oil level is at the "MAX" mark. Too much oil in the pump
distributor gear will cause aeration of the oil.
2. Insert gauge (1) and tighten securely. Remove breather filter
(3). Blow out with compressed air from inside to outside and
reinstall.
Main Hydraulic Pumps - Check Oil Level in Drive
Shaft Housings
The Oil level should be at the lower edge of level plug opening
(7). If necessary remove filler plug with breather pipe (8) and add
Gear Oil through the filler opening up to the level opening (7). Re-
install plugs (7 and 8) and tighten securely.
Check breather pipe for obstruction. If necessary, blow out with
compressed air.
If pump removal becomes necessary, drain the drive shaft hous-
ing oil by removing drain plug (9). Be sure to fill the drive shaft
housing up to the filler opening (7) after mounting of the pump.
REMARK
If oil starts dropping out at one of the breather pipes (8), the
oil seal ring of the respective pump drive shaft must be checked
and replaced if necessary.
4.9 EVERY 50 OPERATING HOURS OR WEEKLY
309
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