HYDRAULIC SYSTEM RT530E-2 SERVICE MANUAL
2-16 Published 4-22-15, Control # 556-00
keeping it from priming. If this occurs, stop engine,
and inspect all connections of the suction hose/tube
for a loose connection, or a missing or damaged O-
ring. Re-start the engine and run until the pump
takes prime for a maximum of 30 seconds. If the
pump does not prime in 30 seconds, stop the engine
and repeat until the pump primes.
b. Increase the RPM to 1500-1800 for 1 to 2 minutes
with no functions actuated and make checks again
as outlined in step a. Incrementally increase throttle
to full RPM and then cycle the functions that the
pump supples to verify proper speed. Verify pump
flow.
5. Check pressure settings. Refer to PRESSURE
SETTING PROCEDURES in this section.
Piston Pump Start-up Procedure
1. Ensure the reservoir is filled with the proper hydraulic
fluid to the high level mark on the reservoir sight gauge.
2. Ensure no air is entering the pump inlet, and that the
pump suction or inlet fluid is not bleeding back to the
reservoir when the engine is stopped, by making sure all
suction or inlet lines are air tight.
3. Remove the case drain hose and adapter from port DR
on the pump (Figure 2-7), and fill housing with the same
hydraulic oil that was used to fill the hydraulic reservoir
to the bottom of the O-ring case drain port. Install the
case drain adapter and hose.
4. Start the engine.
a. Idle engine for two to three minutes with no
functions actuated. Check for leaks and repair if
required. Lay hand on pump to check for excessive
heat build-up. If the pump section is too hot to keep
your hand on, stop immediately. If the pump makes
excessive noise, air is probably entering the pump
keeping it from priming. If this occurs, stop engine,
and inspect all connections of the suction hose/tube
for a loose connection, or a missing or damaged O-
ring. Re-start the engine and run until the pump
takes prime for a maximum of 30 seconds. If the
pump does not prime in 30 seconds, stop the engine
and repeat until the pump primes.
b. Increase the RPM to 1500-1800 for 1 to 2 minutes
with no functions actuated and make checks again
as outlined in step a. Incrementally increase throttle
to full RPM and then cycle the functions that the
pump supples to verify proper speed. Verify pump
flow.
5. Check pressure settings. Refer to Pressure Setting
Procedures (pg 2- 17) in this section.
FIGURE 2-6
1
2
4
5
Pump Location On Engine
3
Reference Only
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