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© 2014
SLF 2250/4000
Hydromatic Stinger
Maintenance
Service procedures - Lubrication of priming pump
All moving parts of the priming pump are oil bath lubricated. The
oil has to be changed once a year. Always drain the oil while the
priming housing is warm, as the oil will flow freely and will carry
foreign particles with it. For drainage, remove the oil drain plug
(82). After reinstalling the drain plug (82), remove the oil filler
plug (81) and fill with oil. Correct oil level is achieved when the oil
is level with the upper mark of the oil level gauge (84), reinstall oil
filler plug (81) when oil level is correct.
Oil change: after 25-50 working hours
at least once a year
Oil filling capacity: 1.0 ltr
Recommended oil: SAE 30 (Engine oil)
API / SF
MIL-L-46 152 B
FORD M2C 9011
GM 6048 M
ATTENTION !
Avoid contact between priming pump drive V-belt and all lubri-
cants - danger of belt sliding!
After an oil change please obey current disposal regulations.
81
oil filler plug
82
oil drain plug
84
oil level gauge
81
82
84
ATTENTION !
If a V-belt is worn, always change both.
Only use original spare belts.
Rsb. Art. Nr.: 084225
Service procedures - Checking and replacing rubber valve plates
To guarantee the reliable operation of the double piston priming
pump, the valve plates have to be checked for damages once a year.
Therefore dismantle the valve plate housing and check rubber
valve plates for damages (cracks, brittleness, etc.).
V-belts of priming pump drive
Check V-belt carefully for signs of mechanical damage at least
once a year.
Avoid contact between the V-belt and all lubricants!
Further check the correct tension of the V-belts. This is to be done
whilst the N100 pump is disengaged and the priming pump is
engaged. Press against the belt (in the middle of the belt) with a
force of 50 N. The free play of the belt must be 10 mm. Adjust the
tension by using the adjustment nuts. Further adjust both guide
rails of the priming pump to a clearance of 2 mm between guide
rails and V-belt.
Note:
If the priming pump is disengaged, the V-belts must touch the cover
therefore allowing the pulleys to run free.
V-belt tension adjustment nuts
clearance for checking the
V-belt tension
guide rails
