Textron Jacobsen AR-5 Technical/Repair Manual

6-30 4181383 First Edition
HYDRAULICS
6
23. Calculate left front cutting unit motor leakage.
(Step 10 – Step 21 / Step 10 x 100 = Leak
Percentage)
Is left front cutting unit motor leakage 10% or
less?
YES The left front cutting unit motor is good.
Proceed to step 24.
NO Proceed to next question.
Is left front cutting unit motor leakage 11% to
20%?
YES The left front cutting unit motor is marginal.
Proceed to step 24.
NO Proceed to next question.
Is left front cutting unit motor leakage 21% or
more?
YES Repair or replace left front cutting unit motor.
(See “Cutting Unit Motors” on page 6-43.)
24. Remove device or tool from left front cutting unit.
25. Disconnect and remove test equipment. Install all
hoses and fittings as noted prior to removal.
26. Install and connect all components as noted prior to
test.
27. Check hydraulic oil level. Add oil as needed. (Refer to
“Safety, Operation, and Maintenance Manual” for
correct oil specifications.)
Rear Cutting Units Circuit Test
See Figures 6-23 and 6-24.
IMPORTANT
• This test works together with the rear cutting
units motors test to isolate a problem with the
rear cutting units circuit.
• Performing this test will isolate the rear cutting
units pump, deck valve, and left rear cutting unit
motor from the rest of the rear cutting units
circuit.
!
WARNING
1. Park the mower safely. (See “Park Mower Safely” on
page 1-5.)
2. Remove the center floorboard.
The hydraulic system is under pressure, and the
oil will be hot.
• Always relieve pressure in the hydraulic
system before performing service.
• Failure to follow appropriate safety
precautions may result in death or serious
injury.
Required Tools and Materials
• Flow Meter
• -8 ORFS Test Hose 3000 psi (207 bar)
• -8 ORFS Tee Fitting
• Blocking Device or Tool

Textron Jacobsen AR-5 Specifications

General

Brand	Textron
Model	Jacobsen AR-5
Category	Lawn Mower
Language	English