FDM-TSIB-026

Technical Service Information Bulletin
Date: June 16, 2021
Bulletin Name: FDM-TSIB-026
Model: Oshkosh S-Series
Units Affected: 2.0 Front Discharge Mixers
2.0 Mixer Pump PTO Shaft
Purpose:
This bulletin provides instruction for replacing the mixer pump PTO shaft, mixer pump input yoke, and mixer pump
input yoke bearing U-bolts to the current production configuration. The new PTO shaft is larger with greaseable
crosses and requires a new mixer pump input yoke and replacing the input yoke bearing U-bolts with bearing
straps.
Notice:
• This bulletin should be read and understood in its entirety before performing this procedure.
• All procedures outlined in the bulletin must be performed by skilled service personnel. Refer to the product
service manual for descriptions of maintenance procedures.
SAFETY NOTICE
Perform your company’s Lockout/Tagout
procedure. If your company does not have a
Lockout/Tagout procedure, follow OSHA
1910.147 and 1910.146 Confined Space as
appropriate.
SAFETY NOTICE
Use appropriate Personal Protective
Equipment (PPE) as required by your
company.
Tools and Equipment Required:
Customer to supply:
• Hand Tools
• Torque Wrench (foot pounds)
Parts Required:
Item
Part Number
Description
Qty.
1
A000V411
PSHAFT, 1410, HR, FLG
1
2
A000V412
END YOKE, 1410, HR, 1.50 TAPER
1
3
A000V413
BRG STRAP KIT, 1410, PSHAFT
1
Procedure:
Lockout/Tagout
1. Place unit on a flat surface, block truck tires, and perform your company’s Lockout/Tagout procedure. If your
company does not have a Lockout/Tagout procedure, follow OSHA 1910.147 and 1910.146 Confined Space as
appropriate.
1
2. The vehicle’s BATTERY DISCONNECT switch is located on the left-hand side of the battery box. Use the
battery disconnect switch when performing any maintenance so the vehicle cannot accidentally be started.
a. Turn the battery disconnect switch (Figure A, Item 1) counterclockwise so the hole on the switch aligns
with the hole in the bracket (Figure A, Item 2).
b. Install the safety lockout device ring (Figure B, Item 1) through the holes on the battery disconnect switch
and the bracket.
c. Install a padlock (Figure B, Item 2) onto the safety lockout device ring, lock it, and put the key in your
pocket. If more than one person is working on the vehicle, each person must install his or her own padlock.
1
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1
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Figure A
Figure B
3. Remove the four 0.44-20 x 1.0 inch 12-point cap screws securing the PTO shaft flange to engine adapter,
see Figure 1.
4. Remove the two U-bolts securing the PTO shaft assembly U-joint to the mixer pump input yoke, see Figure
1.
5. Remove the PTO shaft assembly.
12 Point
Cap Screws
Bearing
U-Bolt
Engine
Adapter
PTO Shaft
Assembly
Figure 1
2
6. Remove the cotter pin from the mixer pump input yoke castle nut, see Figure 2.
7. Remove the castle nut securing the input yoke to the mixer pump shaft. Use a 3 inch open end wrench to
hold the yoke when removing the castle nut.
8. Remove the yoke and key from the mixer pump input shaft. The yoke will not be reused.
Cotter Pin
Castle Nut
Figure 2
9. Install new yoke (A000V412) and key on mixer pump input shaft.
10.
Reinstall castle nut removed in Step 7 on end of mixer pump input shaft. Final tighten castle nut to 130 ft
lbs. Use a 3 inch open end wrench to hold the yoke when torqueing the castle nut.
11.
Install new cotter pin, see Figure 3. If the cotter pin hole does not align with castle nut slots continue to
tighten castle nut to align cotter pin hole and castle nut slot.
Cotter Pin
Castle Nut
Figure 3
3
12.
4.
Install PTO shaft assembly (A000V411) between engine adapter and mixer pump input yoke, see Figure
13.
Install bearing strap kit (A000V413) to secure PTO shaft u-joint to mixer pump input yoke, see Figure 4.
Final tighten strap screws to 32 ft. lbs.
14.
Secure the PTO shaft to engine adapter with four 0.44-20 x 1.0 inch 12-point cap screws removed in Step
3. Final tighten bolts to 40 ft. lbs.
12 Point
Cap Screws
Bearing Strap
Screws
Bearing
Strap
Engine
Adapter
PTO Shaft
Assembly
Figure 4
15.
Remove lockout/tagout.
Continuous Improvement:
The change included in this document is part of the
McNeilus Continuous Improvement Process.
McNeilus’s quality policy is providing customer satisfaction
through innovative products, dedicated service, and a
constant focus on continuous improvement.
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