General Pump HE - Manual (Page 10)

GENERAL PUMP
A member of the Interpump Group
HE SERIES
11. MAINTENANCE INSTRUCTIONS
11.1 Crank mechanism maintenance.
Check oil level through the oil level indicator 1, Fig 7 at
least on a weekly basis.
If necessary, top off oil level from the oil plug 3, Fig. 7
Check the oil when cold and change the oil when still
hot (pump still at working temperature.).
In order to drain the oil from the pump remove the
magnetic plug 2, Fig. 7.
At every oil change clean the magnetic plug 2, Fig. 7 and
check the lower cover of Fig. 6 for grease
sediments or deposits.
OIL CHANGES Hours Qty.
Oil
Type
First Change 50
3.1
quarts
ISO
220 Subsequent
Changes
500
BRAND TYPE
AGIP ACER 220
ARAL MOTANOL HP 220
AVIA AVILUB RSL 220
BP ENERGOL HL 220
CASTROL ALPHA ZN 220
ESSO NUTO 220
FINA SOLNA 220
IP HYDRUS 220
MOBIL DTE OIL BB
SHELL TELLUS C 220
TEXACO REGOL OIL 220
TOTAL CORTIS 220
Oil should be changed at least once a year.
Recommended oils:
11.2 Fluid end maintenance
The fluid end does not require periodical maintenance.
Service operations are limited to valve inspection
and/or replacement, when necessary. It is recommended
to remove head and collector from the pump in one piece
in order to avoid possible splitting hazards of the suction/
delivery valves positioned in between.
In order to do so loosen and remove only two of the
head bolts, 1 Fig. 8.
Replace them with two screws with nut (1, Fig. 9) to keep
head and collector packed up together and then remove
the other six head bolts. Now head and collector can be
easily separated from the pump and disassembled on
work bench (Fig 10).
Check the valve poppets, seats and springs for wear and
replace if necessary. Replace all o-rings at every
inspection. Head bolts should be tightened in a uniform
and alternate way using a torque wrench set for 144 ft.
lbs.
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