TM 5-3805-248-23-2
HYDRAULIC SYSTEM FLOW METER TEE TEST AND MAINTENANCE - CONTINUED
0321 00
SYSTEM TESTS - CONTINUED
4.
Ejector Forward Flow Rate (Leakage Rate).
a.
Move ejector control lever to FORWARD position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct ejector forward flow rate is 67 gpm (254 l/min).
Ejector Return Flow Rate (Leakage Rate).
5.
a.
Move ejector control lever to RETURN position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct ejector return flow rate is 67 gpm (254 l/min).
Bowl Raise Flow Rate (Leakage Rate).
6.
a.
Move bowl control lever to RAISE position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct bowl raise flow rate is 67 gpm (254 l/min).
Bowl Lower Flow Rate (Leakage Rate).
7.
a.
Move bowl control lever to LOWER position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct bowl lower flow rate is 63 gpm (238 l/min).
Apron Up Flow Rate (Leakage Rate).
8.
a.
Move apron control lever to UP position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct apron up flow rate is 67 gpm (254 l/min).
Apron Down Flow Rate (Leakage Rate).
9.
a.
Move apron control lever to DOWN position.
b.
Open manual load valve on flow meter fully.
c.
Start engine and run at 1,900 RPM.
d.
Slowly adjust manual load valve on flow meter to a pressure of 1,000 psi (6,895 kPa).
e.
Record flow rate. Refer to Table 1. Correct apron down flow rate is 67 gpm (254 l/min).
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