
TEST PROCEDURE
73
Open load valve slowly, to drop outlet pressure toward minimum. Flow shall remain constant within 2 gpm, 7,6 lpm at all
pressures.
Adjust the speed control valve till flow is at a low value. Note flow. Raise and lower outlet pressure by closing and opening
the load valve. Flow shall remain constant within 2 gpm, 7,6 lpm.
Fully open the speed control valve.
Set the torque limiter by using the formula:
HP=P• Q /(Eff.• 1714), or P=HP(Eff.*1714)/Q, or Q=HP(Eff*1714)/P
where P = Pressure in psi
Q = flow in GPM
Eff. = overall efficiency
or kW = P• Q /(Eff.• 600), or P=kW(Eff*600)/Q, or Q=kW(Eff*600)/P
where P = pressure in Bar
Q = flow in lpm
Eff. = overall efficiency
calculate these two values:
a. Outlet pressure at full pump flow.
b. Pump flow at full outlet pressure.
1. Set outlet to pressure (a) calculated above. Back out high pressure flow adjusting screw (inner screw) to remove all
load. Set the high flow pressure adjusting screw (outer) so that pump just commences to de-stroke.
2. Set the system to the required maximum outlet pressure. Set high pressure flow adjusting screw (inner) to obtain
the calculated flow (b) at full outlet pressure.
Note: Electric motor current or engine load may be used instead of calculated flows to set power. In step 1, set the
high flow adjustment to achieve the rated motor current or engine load. In step 2, set the high pressure adjustment to
achieve the rated motor current or engine load.
Proceed to
FINAL PUMP TEST (pg. 75)
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Содержание P07 C-mod
Страница 12: ...PUMP PARTS LISTS 12 Ref Figure 1 Exploded view of pump with pressure compensator control www comoso com ...
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