Jacobsen AR3, Technical/Repair Manual

Page: 309 / 342

8-44 4181384 First Edition
CUTTING UNITS
8
1. Remove two jam nuts (1) from both ends of roller
shaft.
2. Remove roller shaft (14) from roller (15 or 16).
3. Remove components from both ends of roller and
keep in order to ease assembly.
4. Inspect roller, shaft, bearing housings, bearings,
journals, O-rings, springs, washers, seal rings, and
seals for wear or damage. Replace as necessary.
Assembly Notes
• Assemble the front roller by reversing the order of
disassembly.
• After assembly, apply grease to grease fittings (13)
on each end of roller shaft (14). (Refer to “Safety,
Operation, and Maintenance Manual” for grease
specifications.)
Rear Roller
Removal and Installation
See Figures 8-42 and 8-43.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Remove the cutting unit. (See “Cutting Unit” on
page 8-36.)
Figure 8-42
3. Remove two socket-head cap screws (1) and lock
washers (2).
4. Remove skid (3) from cutting unit.
Figure 8-43
NOTE
Record location of roller bracket hardware (5, 6, and 7) to
ease assembly.
5. Remove two screws (5), nuts (6), and lock washers
(7) from both sides of roller bracket (4).
6. Loosen threaded set screw (8) on each side of roller
shaft.
7. Remove roller bracket (4) from end of roller shaft.
8. Remove scraper (9) and roller (10) from cutting unit.
Installation Notes
• Install the rear roller by reversing the order of
removal.
• Before installing roller and scraper, align roller shaft
flat with set screws before tightening set screw on flat
on each end of shaft.
Disassembly, Inspection, and Assembly
See Figure 8-44.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-7.)
2. Remove the cutting unit. (See “Cutting Unit” on
page 8-36.)
3. Remove rear roller from cutting unit. (See “Rear
Roller” on page 8-44.)
TN1284
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TN1285
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