TM 5-3895-356-14&P
H. STARTING THE INSTALLATION
J. SYSTEM RUN-IN
After the previous requirements have been met, start the
During the low-speed run-in In both directions, noise
power source. Hold the RPM to low Idle speed If
level of the pump and motor will decrease steadily as air
possible for approximately two minutes.
continues to bleed from the system After about 15
minutes of running, check the fluid level in the reservoir If
the bleeding of the system has caused a large drop in
CAUTION
the reservoir level, add more oil to bring it up to the point
If lines are long, keep a close check on fluid level in
required. Be sure to filter or strain this added oil in the
reservoir. Damage can occur If there Is not an adequate
manner previously outlined.
supply of oil in the system itself
K. FULL SCALE RUN-IN
I. FIRST START
Then, if possible, operate your Dynapower under actual
Move your Dynapower pump control lever slowly into the
working conditions Test for peak performance under the
forward or reverse position. Assuming you do get
heaviest loads you may encounter; check for
Immediate motor response, run the system slowly in both
smoothness of starts and stops In both directions under
directions for 10 or 15 minutes to bleed all the remaining
extreme loads and light loads Try quick starts and stops;
air from the system. If there Is no motor output, shut off
try slow ones. Check for steadiness of power flow
the system and refer to the Trouble Shooting Chart,
throughout the entire range of system speed. Finally, go
Page-77 for possible causes. if motor direction does not
over all connections, checking for possible leaks and
correspond to direction of rotation designed for
tighten as required. Check the fluid supply in the
movement of control lever, high pressure lines must be
reservoir again, and refill to proper level
switched on the pump or motor. Check control lever
linkage for no binding and complete 60 movement, or
Your Dynapower system Is now on full scale operating
stop-to-stop.
status. Remember - keep your system absolutely clean
at all times.
TEST PROCEDURE
Models 45
Pump and Motor
After major overhaul, the following test should be conducted A test stand schematic Is included. See Fig.234.Complete
test stands and power units are available through Dynapower Systems, Kalamazoo, Michigan
A
Test Conditions
1. Fluid - Type A suffix a transmission fluid or equivalent.
2 Fluid - temperature - ambient to 1400
3 Inlet pressure
a Model 45 - 100 psig
4 Shaft rotation as indicated on the charge pump cover
B. Pump Schedule
1 If pump is equipped with an override control, disconnect sense lines and cap at pump check valves.
2 Start electric drive motor and adjust speed to meet the following schedule, measuring flows and case leakage
where indicated.
Time
RPM
PSI
Cam Position
5mn
1180
500
Full Forward
5min
1780
1000
Full Forward
10min
1780
3000
Full Forward
Measure Flow
1780
3000
Full Forward
10min
1180
4500
Full Forward
Measure Flow
1780
3000
Full Forward
10min
1780
3000
Full Reverse
Measure Flow
1780
3000
Full Reverse
10min
1180
4500
Full Reverse
Measure Flow
1780
3000
Full Reverse
Measured flow must meet the following requirements
131