MTD 27-Ton Manual de servicio descargar pdf (Pagina 33)

Form Number 769-06191

NOTE: This worksheet must be completed and submitted

with the failed component for a warranty claim to

be paid

NOTE: Detailed hydraulic system testing instructions can

be found in the 2010 and Newer Log Splitters man

ual, form number 769-06184.

1. Preparation

Inspect the engine coupler, keys and the spider

Check fluid flow from tank to pump (inlet screen)

Check the hydraulic fluid level

Inspect the tank vent

Replace the oil filter

Check engine speed

RPM (set to 3,500)

Install the test gauges between the pump and the

selector valve.

Start and run the log splitter to warm-up the fluid

and check the test set connections for leaks. Cycle

the ram 12 times to purge air from the hydraulic

system.

2. Pump base-line test (ram stationary), record the following:

Engine RPM

Flow meter reading

Pressure reading

Flow rating from the pump capacities chart.

3. Pump load test (ram stationary), record the fol-

lowing:

3a. Slowly close the needle valve just far

enough to identify the by-pass point.

Engine RPM

Flow meter reading

Pressure reading

Pressure rating from the by-pass settings

chart.

Model number

Serial number

Pump number

Valve number

Pump Capacities

Pump Tonnage

GPM/LPM

+ 0.5 GPM

718-04127 21,25 and 27 9.5 (36 lpm)

718-04729 27 ton HP

pump

13 (46 lpm)

718-04128 33 15 (57 lpm)

NOTE: The engine must be at 3,500 RPM for all

testing. If the engine RPMs fall under load, repair

the engine before testing the hydraulics.

Do NOT exceed 3,200 PSI (220

Bars). This test is performed up-stream

of the relief valve, rendering the relief

valve ineffective during the test. Over-

loading the system will damage the

pump.

Pump By-pass Settings

Pump Tonnage

By-pass

P r e s s u r e

+ 100 PSI

718-04127 21,25 and 27 500 (34 bar)

718-04729 27 ton HP

pump

1,000 (69

bar)

718-04128 33 700 (48 bar)

LOG SPLITTER HYDRAULIC SYSTEM WORK SHEET

For use with test kit part number 759-3742

For Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

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MTD 27-Ton Manual de servicio Pagina 33

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