Pump service & repair, Figure 48 – Alamo HYDRO 15 User Manual

Page 38

HYDRO 15 (Service Manual) 09/06

Alamo Industrial

Section 2 - 22

PUMP SERVICE & REPAIR

Figure 47

Recommended Start-Up Procedure

For New Or Rebuilt Pump:

(Important Steps 26 through 30)

26.

Before installing a new or rebuilt pump, back off the

main relief valves until the spring tension on the adjusting
screw is relieved

(See Specification section for relief valve

settings).

This will avoid the possibility of immediate dam

age to the replacement pump in the event the relief valve has
been set to high.

27.

Before connecting any lines (hoses) to the pump fill all

the ports with clean oil to provide initial lubrication on start
up, fill the suction hoses with oil. This is particularly import-
ant if the pump is located above the reservoir.

Use thread

sealant on all fittings and hose threads. DO NOT USE
TEFLON TAPE.

28.

Make certain the oil reservoir is full of clean oil. Test oil

before running a replacement pump. Contaminated oil will
damage a replacement pump even oil ran a minute or so.
Review the type of failure that had occurred and investigate
any damage that may have been caused due to that failure.
DO NOT run the replacement pump if the cause of the failure
has not been corrected. Any oil added to or to fill reservoir
must be ran through a 100 micron screen before going into
tank. See the tank fill section for available equipment for this
purpose.

29.

After connecting the lines (hoses) and mounting the

replacement pump, operate the pump at least two minutes
at no load and at low RPM (400 rpm). During this break-in
period, the mower should run free (no load) and not develope
an excessive amount of heat. If the unit operates properly,
speed and pressure can then be increased to normal
operating settings (See Specification Section).

30.

Reset the main relief if needed to its proper setting while

the pump is running at maximum operating engine (motor)
speed for the PTO rating. (See Specification Section)

Figure 48

123456

Torque to
200 ft. lbs.

Torque to
250 ft lbs.