High-Pressure Grease Pump
SER 7175-R4
Alemite, LLC
25
Revision (2-13)
6. Loosen the
Locknut
on the pressure switch
Screw
.
See
Figure 9
.
7. Tighten the
Screw
into the Switch Body.
• This increases the amount of tension on the Spring.
If the reading is too high:
8. Loosen the
Screw
from the Switch Body.
9. Tighten the
Locknut
on the Pressure Switch.
Check for Leakage
View the gauge for 30 seconds for pressure drop. A
decrease greater than 100 psi (6.9 Bars) indicates leakage
and requires troubleshooting.
Pressure Switch On Setting
10. Plug the Electrical Cord into the outlet.
11. While Holding the Control Valve open, open the
Bleed
Screw
slightly on the gauge assembly.
12. Read the gauge once the pump turns on.
The reading must be between 3200 and 3900 psi
(220.7-269 Bars).
If the reading is not to specifications, replace Pressure
Switch Spring (
130
). See
Figure 2-D
.
13. Close the
Bleed Screw
on the gauge assembly.
Emergency Bypass Mechanism Adjustment
14. Once again, operate the Control Valve and allow the
pump to turn off.
15. Loosen the
Locknut
on the
Spring Housing
, if
necessary. See
Figure 9
.
16. Slowly loosen the
Spring Housing
from the Valve
Body until the pump starts.
Product is now recirculating in the emergency bypass
loop.
17. Unplug the Electrical Cord.
18. Remove the Control Valve from the high-pressure test
gauge assembly.
19. Tighten the
Spring Housing
(Increase Setting) into
the Valve Body two (2) turns.
This approximates a pressure setting of 6500 psi
(448.3 Bars).
20. Tighten the
Locknut
.
Figure 10
High-Pressure Test Gauge Assembly - Model 5287
