Textron JACOBSEN GP400 Technical/Repair Manual

8-38 4252490-Rev A
CUTTING UNITS
8
Front Roller
Removal and Installation
See Figure 8-44.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise cutting unit assembly with a suitable lifting
device and support the cutting unit frame to remove
weight from roller.
Figure 8-44
3. Remove nuts (3) and screws (4).
4. Remove adjuster knobs (1).
5. Remove adjuster brackets (2) and front roller (7) from
cutting unit.
6. Loosen jam nut (5) and square head bolt (6) on each
side of front roller (7).
7. Remove front roller (7) from adjuster brackets (2).
Installation Notes
• Install front roller by reversing the order of removal.
• Center the roller between adjuster brackets before
tightening jam nuts and square head bolts.
• Align roller shaft flat with square head bolts before
tightening bolt on flat on each end of shaft.
• Lubricate grease fittings with grease that meets or
exceeds NLGI Grade 2 LB specifications. Clean
grease fittings before lubricating and apply grease to
the fittings with a hand grease gun only. Pump the
gun slowly until a slight amount of pressure is felt,
then stop—do not over-grease. Do not use
compressed air gun.
• Check height-of-cut adjustment. (See “Height-of-Cut
(HOC) Adjustment” on page 8-18.)
Rear Roller
Removal and Installation
See Figure 8-45.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Raise cutting unit assembly with a suitable lifting
device and support the cutting unit frame to remove
weight from roller.
Figure 8-45
3. Remove screw with grease fitting (1) on each side of
rear roller (2).
4. Remove rear roller (2).
Installation Notes
• Install rear roller by reversing the order of removal.
• Tighten screws (1) to 16–24 ft-lb (21.7–32.5 N·m).
• Lubricate grease fittings with grease that meets or
exceeds NLGI Grade 2 LB specifications. Clean
grease fittings before lubricating and apply grease to
the fittings with a hand grease gun only. Pump the
gun slowly until a slight amount of pressure is felt,
then stop—do not over-grease. Do not use
compressed air gun.
TN3748
3
1
1
7
5
6
2
2
3
4
4
5
6
TN3749
1
2
1

Textron JACOBSEN GP400 Specifications

General

Brand	Textron
Model	JACOBSEN GP400
Category	Lawn Mower
Language	English