Specifications

25
GENERAL
This section contains Troubleshooting information
in table form which should be used when problems
occur with machine. The table lists problems
encountered, possible causes, and solutions for
problems along with reference to section of manual
where detailed instructions may be found to correct
problems.
OPERATIONAL TROUBLESHOOTING
For suggestions on correcting problems with bore
conditions or with honing operation; consult
Table 5-1.
SECTION 5
TROUBLESHOOTING
TABLE 5-1, Operational Troubleshooting Index
PROBLEM PROBABLE CAUSE SOLUTIONS SEC. SCREEN
Tool generates 1. High feed rate A. Lower feed rate 3 Run / Diagnostic
high load 2. Worn tool A. Replace tool 2 Setup
3. Tool Loading (Metal particles A. Dress tool 3
on tool surface) B. Increase tool’s rpm
C. Check coolant* 1
Tool not cutting 1. Glazing A. Dress tool 2 Setup
B. Increase feed rate 3 Run / Diagnostic
C. Increase stroking speed 3 Run / Diagnostic
D. Replace tool, use softer 2 Setup
grit tool
E. Check coolant* 4
Slow stock 1. Improper spindle speed A. Increase spindle speed 3 Run / Diagnostic
removal 2. Inadequate tool feed rate A. Increase feed rate 3 Run / Diagnostic
3. Improper tool A. Replace tool 2 Setup
4. Inadequate tool's rpm A. Increase tool’s rpm 3 Run / Diagnostic
5. Improper or diluted coolant* A. Check coolant* 4
Poor stone life 1. Excessive tool feed rate A. Decrease feed rate 2-3 Run / Diagnostic
2. Inadequate tool's rpm A. Increase tool’s rpm 3 Run / Diagnostic
3. Improper tool A. Replace tool 2 Setup
4. Improper or dilute coolant* A. Check coolant* 4
5. Excessive stock removal A. Decrease stock removal 3
6. Excessive float in tool(s) A. Decrease tool float 2 Setup
7. Worn guide bushings A. Replace bushings 4
Bellmouth 1. Short or unbalanced part A. Shorten stroke length 3 Run / Diagnostic
2. Improper tool A. Replace tool 2 Setup
3. Improper stroke length A. Shorten stroke length 3 Run / Diagnostic
4. Excessive float in tool(s) A. Decrease tool float 2 Setup
5. Worn guide bushings A. Replace bushings 4
Barrel 1. Improper stroke length A. Shorten stroke length 3 Run / Diagnostic
B. Increase stroke length 3 Run / Diagnostic
C. Replace tool 2 Setup
2. Improper tool A. Replace tool 2 Setup
*NOTE: Many honing problems, such as poor tool life and rough finish, are caused by the following: the wrong
coolant, insufficient coolant, dirty coolant, or contaminated coolant. Use ONLY clean, full-strength Sunnen
Industrial Honing Oils or Water-Based Coolants. DO NOT dilute or “cut” the oil or coolant in your Machine with
other oils or coolants. Keep solvents and cleaning fluids away from your Machine.