Kubota AP-SG2572, Operator'S Manual

Section 4: Maintenance 

Table of Contents

4/9/19

AP-SG2572 & AP-SG2584- Skid Steer Grader 303-458MK

16

Straight Shank Replacement

Figure 4-2

Straight Shank Replacement

Refer to Figure 4-2:

Straight shanks should be inspected frequently and at 
the end of the season. Replace worn shanks with 
genuine Kubota parts.

1.

Shut skid steer or tractor down properly as follows: 

•

If straight shanks (#2) are adjusted below grade, 
park grader supported 4" off the ground. See 

“Straight Shank Height Adjustment” 

on page 11 

for detailed instructions.

•

If straight shanks (#2) are adjusted above grade, 
Shut skid steer or tractor down properly before 
dismounting. Refer to 

“Skid Steer Shutdown 

Procedure” 

on page 8.

2.

Press top of shank spring retainer (#1) together with 
a pair of pliers and pull retainer out of shank tube 
slot (#3).

3.

Using hand grip on top, remove shank (#2) from 
grader hitch tube slot (#3). 

4.

Insert new straight shank (#2) in grader hitch tube 
slot (#3) until the preferred notch in shank is seated 
in hitch tube slot. 

5.

Insert clips (#1) into hitch tube slot (#3) behind 
straight shanks (#2) until clip snaps into the slot. 

6.

Repeat steps 2-5 for remaining straight shanks (#2).

39340

ItemPart No.

Part Description

Qty

1 305-111D

72" CLIP SHANK RETAINEER  - - - - - - 6

1 LP_305-111D 84" CLIP SHANK RETAINEER  - - - - - - 7
2 820-557C

72" STRAIGHT SHANK  - - - - - - - - - - - 6

2 820-557C

84" STRAIGHT SHANK  - - - - - - - - - - - 7

Skid Shoe Replacement

Figure 4-3

Skid Shoe Replacement

Skid shoes should be inspected frequently and at the end 
of each season. Replaced skid shoes when material 
thickness is less than 1/8" at any point. If one end is 
wearing faster than the other, the skid shoes may be 
turned around to extend their wear life. Order only 
genuine Kubota parts.

Replace or turn skid shoe around as follows:

Refer to Figure 4-3:

1.

Park on level ground and engage park brake.

2.

Shut skid steer or tractor down properly and 
dismount. Refer to 

“Skid Steer Shutdown 

Procedure” 

on page 8.

3.

Place four 3" or 4" high support blocks in front of the 
grader blades and between side panels with two 
blocks on each side.

4.

Start skid steer or tractor, raise grader up about 6", 
and drive forward until grader blades are directly over 
the support blocks.

5.

Lower grader until grader blades are resting on 
support blocks.

6.

Shut skid steer or tractor down properly and 
dismount.

7.

Remove 3/8" hex flange locknuts (#3), 3/8"-16

plow 

bolts (#2), and skid shoes (#1) from grader.

8.

Plow bolts should be checked for wear and replaced 
if needed.

9.

Turn existing skid shoes (#1) around or install new 
skid shoes (#1) to grader side panels with 3/8"

-16 x 1" 

GR5 

plow bolts (#2) and 3/8" hex flange lock 

nuts (#3). Tighten locknuts to the correct torque.

10. Return to the skid steer/tractor, raise grader up, and 

back Skid Steer Grader off the support blocks.

11. Properly shut skid steer/tractor down and dismount 

to place support blocks in an out-of-the-way location.

39345

ItemPart No.

Part Description

1 303-345D

SKID SHOE REVERSIBLE

2 802-466C

PLOW 3/8"-16 X 1-1/4" GR5

3 803-209C

NUT FLANGE LOCK 3/8"-16 PLT