Handler PT-6 FSS, Manual

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9 - 3
Troubleshooting Procedures
The following investigation recommendations are given you to assist in simple repairs. To
effectively troubleshoot these areas there are only two (2) special instruments that will probably
not be found in a mechanic's tool box - these are - 0-1500 RPM hand tach and a 0-3000 PSI
pressure gauge. These items can normally be purchased locally but if you have problems
obtaining these items they can be purchased from Chandler Equipment Co.
Description Part Number
Digital Hand Tach (0-1500 RPM) 300-FT-033
Hydraulic Pressure Gauge (0-3000 PSI) 400-1-351
The trouble shooting program outlined following has been expressed as simply as possible
through the use of a manual but if any questions arise please do not hesitate to call. If, after all
investigations have been carried out relating to your problem, and the problem remains, contact
Chandler Equipment Co.
Problem I: Spinner speed very slow even when not spreading or not at all.
Recommended Investigation:
A) Basic Checks
1) Check to be sure indicator on flow control valve is located in its proper location
(Refer to spinner speed and spread pattern instructions).
2) Check to be sure there is sufficient oil in tank and there is no restriction of any
manner in line allowing oil flow from bottom of tank to pump.
3) Check spinner shaft bearings for proper lubrication and wear.
4) Check that keyways are properly in place on motor shafts.
If everything is in order proceed to investigation procedure B .
B) Remove spool cap (3-7) from flow control valve. Remove other spool cap. From either
side, push out spool and spring. Clean all items removed thoroughly and blow dry with
air hose. Blow out housing areas thoroughly from which parts were removed.
Reassembly:
1) Replace spool from upper side of housing making sure hollow end goes in first. Spool
should slide freely.
2) Insert spring from lower side of housing. Make sure end of spring goes up in hollow part
of spool.
3) Replace lower spool cap making sure spring sits in recessed area of spool cap.
4) Replace upper spool cap.
If problem has not been eliminated, continue to investigation procedure C .