501-K00 Page 7/12
MAINTENANCE
Failure to disconnect and lockout
electrical power or engine drive before
attempting maintenance can cause
severe personal injury or death
Hazardous
machinery can
cause serious
personal injury.
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury or property damage.
Hazardous pressure
can cause serious
personal injury or
property damage
If pumping hazardous or toxic fluids,
system must be flushed and
decontaminated, inside and out, prior to
performing service or maintenance
Hazardous or toxic
fluids can cause
serious injury.
Failure to disconnect and lockout
electrical power before attempting
maintenance can cause shock, burns or
death
Hazardous voltage.
Can shock, burn or
cause death.
Failure to relieve system pressure prior
to performing pump service can cause
serious personal injury or property
damage.
Systems with meters will still
be pressurized even after the hose is
emptied
Hazardous pressure
can cause serious
personal injury or
property damage
NOTICE:
Maintenance shall be performed by qualified technicians
only, following the appropriate procedures and warnings
as presented in this manual.
Torque Table 1
Head / Casing Capscrews (21)
Ft-lbs 30
N-m 40.7
Relief Valve Cover Capscrews
Ft-lbs 20
N-m 27
Bearing Cap Capcrews (28)
Ft-lbs 20
N-m 27
STRAINERS
Strainers must be cleaned regularly to avoid pump starvation.
Schedule will depend upon the application and conditions.
LUBRICATION
NOTICE:
To avoid possible entanglement in moving parts do not
lubricate pump bearings, hydraulic adapter coupling or
any other parts while pump is running
Pump bearings and hydraulic motor couplings (if equipped)
must be lubricated every three months at a minimum. More
frequent lubrication may be required, depending on the
application and the operating conditions.
Recommended Grease:
Mobil® - Mobilgrease XHP222,
Exxon® - Ronnex MP Grease
or equivalent Lithium grease.
Greasing Procedure:
1. Remove the grease relief fittings (76A) from the bearing
covers (27) or hydraulic motor adapter (135).
2. SLOWLY apply grease with a hand gun until grease
begins to escape from the grease relief fitting port. Discard
excess grease in accordance with the proper codes and
regulations.
3. Replace the grease relief fittings (76A).
DO NOT over grease pump bearings. While it is normal for
some grease to escape from the grease tell-tale hole after
lubrication, excessive grease can cause mechanical seal
failure. The tell-tale hole is located in the head (20) between
the bearing (24) and the mechanical seal (153).
