Ariens 51121600 Instruction Sheet Download Page 3

08401009 • 2/15 • Page 3 of 8

DISASSEMBLY

Models 911176, 177

1. Remove two bolts from blade and remove blade. 

See Figure 4.

2. Remove center bolt and three washers. See 

Figure 5.

3. Loosen adjustment nuts on BBC engagement 

cable. Loosen front nut until threads are no longer 
engaged and nut is loose on the cable. See 
Figure 6.

4. Insert a 1/4" (6 mm) pry bar or similar tool into the 

hole in the clutch actuating lever. Pry lever to the 
right (clockwise) and disconnect cable spring from 
clutch lever. Gradually release lever.

5. While holding anti-rotation arm in position with pry 

bar, remove anti-rotation shoulder bolt. Gradually 
release the spring tension and allow the 
anti-rotation arm to rotate counter-clockwise.

6. Remove BBC spring.

7. Remove blade brake clutch and washers from 

engine shaft.

8. Remove two tapping screws retaining drive pulley 

guide. Remove guide, pulley, and key.

IMPORTANT: 

Discard two tapping screws, drive pulley 

guide, pulley and key.

 Figure 4

1

2

1. Blade Bolts
2. Blade

 Figure 5

1

2

1. Center Bolt
2. Washers

 Figure 6

6

5

4

1

2

3

7

1. BBC Engagement Cable
2. Front Adjustment Nut
3. Clutch Actuating Lever
4. Cable Spring
5. Anti-rotation Arm
6. Anti-rotation Shoulder Bolt
7. BBC Spring
8. Blade Brake Clutch

8

Summary of Contents for 51121600

Page 1: ...nderstand and follow all safety practices in Owner Operator Manual before beginning Item Description Qty Ariens P N 1 Ground Drive Pulley 51121600 51121700 1 07343800 2 Ground Drive Pulley 51121800 51...

Page 2: ...es Discard screws 7 Pull belt over end of crankshaft to allow belt to slide out through belt channel 8 Rotate transmission backward to remove hardware then adjust to loosen belt 9 Remove belt and pull...

Page 3: ...lever 5 While holding anti rotation arm in position with pry bar remove anti rotation shoulder bolt Gradually release the spring tension and allow the anti rotation arm to rotate counter clockwise 6 R...

Page 4: ...allow belt to slide out through belt channel 12 Rotate transmission backward to remove hardware then adjust to loosen belt 13 Remove belt and pull through the belt channel See Figure 8 Figure 7 1 Cra...

Page 5: ...h this hole Belt Channel Plug 1 Install metal plug item 4 using two 10 24 x 3 8 tapping screws item 5 Hold plug in position from inside of channel while securing screws See Figure 10 Dome Plug 2 Inser...

Page 6: ...176 only Install spacer item 6 onto crankshaft IMPORTANT Install new engine pulley item 2 with thick side of pulley on top See Figure 12 for orientation 6 Install key item 7 and wave washer item 8 7 I...

Page 7: ...light amount of slack and hand tighten front adjustment nut against the cable bracket Tighten the rear adjustment nut See Figure 14 17 Replace blade and two bolts on blade brake clutch Torque bolts to...

Page 8: ...Make sure the return spring is properly connected to transmission bracket 4 On the handlebar loosen cable nuts away from bracket See Figure 29 5 Move the wheel drive cable adjuster up or down the han...

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