SKF FlowMaster II Montageanleitung Und Einbauerklärung Seite 13

Troubleshooting (continued)
Condition
Lubricant leaking from safety
unloader valve
Lubricant leaking from weep
hole in vent valve
Troubleshooting - mechanical shut-off (MSO) system
Condition
Cannot refill reservoir through
MSO
Reservoir is low or empty,
but cannot fill through MSO
Fill pump fails to stall, reservoir
overfills
Grease found on top of follower
Possible cause
Pressure of system set too high
Safety unloader damaged or
contaminated
Vent valve lubricant seal damaged
Possible cause
Reservoir is full
Pressure present at port P
Pressure present at port P
Follower assembly is sticking in up
position
Straight spring (81) is broken or
damaged
Pin (76) is contaminated with dirt or
debris
Body (77) or ball (75) is fouled with dirt
or debris
Body (77) or ball (75) is worn
Pivot arm assembly (72) is damaged
or out of alignment with pin (76)
Lubricant is leaking past follower
Follower assembly is damaged
MSO leaking grease through guide (79)
13
Corrective action
Adjust pressure switch setting
Replace safety unloader
Replace lubricant seal
Corrective action
Check lubricant level
Vent pressure at port P using fill/hydraulic vent
valve (20) Check gauge pressure Pressure on
port P must be vented to reset MSO valve for filling
Vent pressure at port P using fill/hydraulic vent
valve (20) Check gauge pressure Pressure on
port P must be vented to reset MSO valve for filling
Repair or replace follower
Replace straight spring (81) and gasket (74)
Clean or replace pin (76) and/or guide (79)
Clean ball (75) and body (77)
Replace body (77) or ball (75)
Repair or replace pivot arm assembly (72)
Repair or replace follower
Repair or replace follower
Worn or damaged U-cup seal (80), pin (76),
and/or copper gasket (78) Replace all
Table 2
Table 3