Every 50 Hours

W23987
W23987-UN-07OCT13

Loader Hardware (Right-Hand Side Shown)

W08997
W08997-UN-12SEP07

3X20, 4X00, 4X10 Series and 3203 Mounting Frame
(Right-Hand Side Shown)

W06988
W06988-UN-18AUG04

55 Series Mounting Frame (Left-Hand Side Shown)

A - Hardware, M16

B - Hardware, M12

Tighten loader and mounting frame hardware (A and B) on both sides to specifications.

3X20, 4X00, 4X10 Series and 3203 Tractors: Tighten mounting frame hardware in sequence shown.

ItemMeasurementSpecification
M16 Hardware (A)Torque310 N•m (229 lb-ft)
M12 Hardware (B)Torque140 N•m (103 lb-ft)

W08904
W08904-UN-17AUG07

A - Hardware, M12 (6 on front)

B - Hardware, M12 (2 on each side)

4105 Tractor: Tighten hood guard mounting hardware (A and B) to specification (10 locations).

ItemMeasurementSpecification
M12 HardwareTorque140 N•m (103 lb-ft)

W06990
W06990-UN-18AUG04

Weight Bracket—770, 790, 3005 and 4005

W06991
W06991-UN-18AUG04

Weight Bracket—870, 970, 1070 and 990

W06993
W06993-UN-18AUG04

Weight Bracket—855 and 955

A - Hardware, M12

B - Hardware, M12

C - Hardware, M16

55, 70 and 90 Series, 3005 and 4005 Tractors: Tighten front weight bracket mounting hardware (A, B and C) to specifications.

ItemMeasurementSpecification
M12 Hardware (A and B)Torque140 N•m (103 lb-ft)
M16 Hardware (C)Torque80 N•m (59 lb-ft)

W23990
W23990-UN-07OCT13

A - Nuts, M16 (7 per side)

H160 Loader: Tighten fourteen nuts (A) (inside frame), on pivot pins and front frame on both sides, to specification.

ItemMeasurementSpecification
NutsTorque150 N•m (111 lb-ft)

W23991
W23991-UN-07OCT13

A - Nuts, M16 (9 per side)

H165 Loader: Tighten eighteen nuts (A) (inside frame), on pivot pins and front frame on both sides, to specification.

ItemMeasurementSpecification
NutsTorque150 N•m (111 lb-ft)


Checking Parking Latch Cap Screw Adjustment

W23960
W23960-UN-07OCT13

W20270
W20270-UN-12JAN09

Left-Hand Side Shown

A - Cap Screw

B - Latch

C - Locking Screw

D - Latch Pin

E - Leaf Spring

F - Brace Pad

G - Mast Pad

  1. Be sure loader is equipped with materials bucket, 4-in-1 bucket or grapple bucket.

  2. Attach loader to tractor (See Attach Loader section.)

  3. Start tractor engine and lower ballast box or rear implement to the ground.

  4. Dump bucket 10°—20° and lower to ground.

  5. Retract lift cylinders, raising front wheels 25—50 mm (1—2 in.) off ground. (Do not retract lift cylinders completely.)

  6. On both sides, make sure latch (B) is fully seated against brace pad (F) and latch pin (D) is engaged with leaf spring (E). Cap screw (A) should contact mast pad (G). If not, adjust each cap screw as follows:

    1. Loosen locking screw (C).

    2. Turn cap screw (A) until it makes contact with mast pad but latch is still free to rotate.

    3. Tighten locking screw to specification.

      ItemMeasurementSpecification
      Locking ScrewTorque25 N•m (221 lb-in.)

    NOTE: To disable the quick park feature, loosen locking screw (B), turn cap screw (A) until it is tight against mast pad (G) so latch (C) cannot rotate freely. Tighten locking screw to specification.

  7. Extend lift cylinders to lower tractor to ground.

  8. Shut off tractor engine and remove key.


Check Transmission/Hydraulic Oil Level

  1. Cycle all cylinders three or four times.

  2. Retract bucket cylinders completely and lower loader to ground.

  3. Shut off tractor engine and remove key.

  4. Check transmission/hydraulic oil level. (See your tractor Operator’s Manual).

OUO6064,0000CD8-19-20130722