SKF Lincoln FlowMaster II Benutzerhandbuch Seite 12

Float switch
If float switch (38) is not detecting
proper grease level, there are several
possible reasons (→ Fig. 6 and
Fig. IPB 1, page 18):
Gauge operation
Determine if gauge (wired to float
switch connection) is functional and
wired correctly.
Float switch connection
Determine if wires are securely
connected to power supply, gauge and
float switch.
Float switch function
Determine if float switch and
components are functioning properly:
1 Float switch (38) is securely fastened
to drum cover (13).
2 Float switch gasket (55) is clamped
between float switch base and drum
cover (13). Replace gasket if missing
or torn to prevent entrance of water or
contaminants into reservoir.
3 Float magnet (56) is secured under
magnet cover (62). Float is assembled
properly if TOP is stencilled to top of
float. If float is missing, replace. If
float is upside down, it must be
inverted. If magnet cover is missing,
replace (→ Fig. 5, page 11).
4 Wiper gasket (63) is in place and
moving freely under wiper cover (64).
If excessive grease is noticed on
float switch (38), replace gasket.
Gasket should move approximately
/ in. (3 mm) from center position. If
1
8
gasket cannot move freely, remove
wiper cover (64) and determine cause
of restriction.
If all above have been corrected and
float switch still does not indicate
proper grease level, it is defective and
must be replaced.
Refer to level sensor manual 404802 for
level sensor information. *
Float switch (38)
Low level port
12
Fig. 6 * Safety unloader
valve
32
Safety unloader valve (4) (→ Fig. 2, page 8)
33
is not serviceable. Replace if malfunction
55
is apparent. Upon reassembly, tighten to
10 lbf-ft (13,5 Nm).
56
Safety unloader valve (4) is set to open
at 4 750 to 5 250 psi (328 to 362 bar)
lubricant pressure. If pressure switch fails
to operate and shut off hydraulic supply to
pump, safety unloader will open at
approximately 5 000 psi (345 bar) to
relieve lubricant supply line pressure
(safety unloader is preset and cannot be
adjusted).
Fig. 7 *
57
58
59
60
* Indicates change.