Jacobsen HR5111 Service And Repair Instructions page 315

PROBLEM
1. Blades do not turn.
2. Blades run slow.
3. Uneven cutting.
4. Ragged cut.
5. Excessive vibration.
SECTION 12B. FAILURE ANALYSIS
PROBABLE CAUSE
a. Blades jammed.
b. Spindle bearing failure.
c. Drive assembly malfunctioning.
d. Drive motor malfunctioning.
e. Tractor hydraulic system
malfunctioning.
a. Blades jammed.
b. Spindle bearing failure.
c. Drive assembly malfunctioning.
d. Drive motor malfunctioning.
e. Tractor hydraulic system
malfunctioning.
a. Deck not adjusted level.
b. Blades loose.
c. Blades bent.
d. Spindle bearing failure.
e. Deck shell bent.
a. Operating too fast for conditions.
b. Blade dull.
c. Blades loose.
d. Blades installed wrong.
a. Blade not balanced.
b. Blades loose.
c. Blades bent.
d. Spindle bearing failure.
e. Spindle housing or deck shell
cracked.
12B-1
ATTACHMENTS
REMEDY
a. Clean underside of deck.
b. Check bearings, repair
(Section 12D).
c. Inspect, repair (Section 12D).
d. Repair/replace (Sections 8L,
8M, 8N).
e. Test (Sections 8M, 8N).
a. Clean underside of deck.
b. Check bearings, repair
(Section 12D).
c. Inspect, repair (Section 12D).
d. Repair/replace (Sections 8L,
8M, 8N).
e. Test (Sections 8M, 8N).
a. Adjust deck (see Operator's
Manual).
b. Tighten (Section 12D).
c. Replace.
d. Check bearings, repair
(Section 12D).
e. Replace.
a. Slow down ground speed (see
Operator's Manual).
b. Sharpen/replace (Section 12F).
c. Tighten (Section 12F).
d. Install correctly (Section 12F).
a. Balance (Section 12F).
b. Tighten (Section 12F).
c. Replace.
d. Check bearing, repair
(Section 12D).
e. Replace.
12B