Maintenance
XR500
11/19/21
5-1
Maintenance
Maintenance Safety Rules
5
SECTION 5 MAINTENANCE
5.1 Maintenance Safety Rules
WARNING!
Disengage the blades, turn off the engine, set the
parking brake, and remove the key before perform
-
ing any service to, maintenance on, or adjustments
to the deck.
Do not allow children on or around the deck or per
-
form maintenance on the deck when children are
present.
Always perform the appropriate maintenance
schedule(s) in a timely fashion.
Do not allow anyone near any operator controls
while performing adjustments, service, or mainte
-
nance to the drive unit or deck.
Always use personal protection equipment such as
eye, hand, head, and ear protection when perform
-
ing any service or maintenance to the drive unit or
deck.
Keep the drive unit engine area free of accumu
-
lated debris, fuel, or excess grease and oil to
reduce fire hazard.
Keep the deck in good operating condition with all
safety devices in place.
Check the blades frequently. Verify that they are
sharp, free of nicks and cracks, and securely fas
-
tened.
Periodically tighten all bolts, nuts and screws. Ver
-
ify that all fasteners are properly installed to ensure
the drive unit and deck are in safe operating condi
-
tion.
Upon completing any maintenance or service func
-
tion, verify that all safety guards and devices are
properly installed before operating the drive unit or
deck.
Verify that all warning labels and decals are prop
-
erly installed, visible, and legible.
Always remove debris from the top and bottom of
the deck after each use.
CAUTION!
Always perform the appropriate maintenance
checklists at the proper time interval.
Failure to perform the appropriate maintenance
checklists at the proper time interval will cause
damage to the Articulator, unsafe operating condi
-
tions, and substandard performance.
Warranty issues are dependent on proper mainte
-
nance.
Along with completing the Pre-Operation Equipment
Inspection Checklist
each time
you operate the Articulator,
complete the following Maintenance Checklists at the indi
-
cated time intervals.
5.2 Torque Values
Below is a table of suggested torque values for this unit.
Please use these torque values on this unit unless other
-
wise specified.
5.3 Mower Deck Leveling Adjustment
The mowing decks come leveled from the Lastec factory.
Should the decks require resetting during the course of
maintenance, an eccentric cam in the ball joint of the deck
pivot assemblies can be adjusted to level the decks.
Decks 1 and 3 attach to the deck cross tube by sliding pivot
ball joints that can be adjusted by setting the cam position
of the deck adjustment cam.
1.
Loosen the central bolt that goes through the ball joint.
2.
Pull out the bushing containing the deck adjustment
cam.
3.
Position the deck adjustment cam to level the deck.
4.
Replace the deck adjustment cam with bushing. Note
that a weldment block prevents the hex head on the
deck adjustment cam from rotating.
Grade
SAE 5
SAE 8
Tensile
Strength
105000
PSI
150000
PSI
Grade Mark
Bolt
Diameter
Threads per
Inch
SAE 5
in-lbs (Nm)
SAE 8
in-lbs (Nm)
6
8
10
10
12
1/4
1/4
5/16
5/16
3/8
3/8
7/16
7/16
1/2
1/2
9/16
9/16
5/8
5/8
3/4
3/4
7/8
7/8
1
32
32
24
32
24
20
28
18
24
16
24
14
20
13
20
12
18
11
18
10
16
9
14
8
20 (2.3)
24 (2.7)
35 (4.0)
40 (4.5)
50 (5.7)
95 (10.7)
95 (10.7)
ft-lbs(Nm)
17 (22.6)
20 (27.1)
30 (40.7)
35 (47.5)
50 (67.8)
55 (74.6)
75 (101.7)
85 (115.3)
105 (142.4)
115 (155.9)
150 (203.4)
160 (217.0)
170 (230.5)
175 (237.3)
302 (409.5)
300 (406.8)
466 (631.8)
-
30 (3.4)
45 (5.1)
50 (5.7)
65 (7.3)
125 (14.1)
150 (17.0)
ft-lbs(Nm)
23 (31.2)
25 (33.8)
40 (54.2)
45 (61.0)
65 (88.1)
70 (94.9)
100 (135.6)
110 (149.2)
135 (183.1)
150 (203.4)
195 (264.4)
210 (284.8)
220 (298.3)
225 (305.1)
473 (640.9)
400 (542.4)
714 (967.4)
