Engine Removal; Engine Installation - Ariens 939 SNO-THRO 939001 Service Manual

7.2 ENGINE REMOVAL

Figure 22
CAUTION: Remove fuel from fuel tank before
removing engine.
1. Drain gasoline.
2. Separate blower housing from frame (see Figure
7).
3. Block frame front and back so it will not tip.
4. Remove belt cover.
5. Remove attachment belt and drive belt from the
engine pulleys. For instructions, see "Attachment
Drive Belt Replacement" on page 15 and "Traction
Drive Belt Replacement" on page 16.
6. Remove bolt, lock washer, and flat washer
securing pulleys to engine shaft.
7. Loosen and slide pulleys off engine shaft.
8. If the unit has a bracket at the top of the engine for
chute/deflector controls, unbolt it.
9. If the unit is equipped with electric starting, remove
the starter.
2
1
3
5
10
11 12
13
10.Remove the four mounting bolts from the engine
base.
11.Lift engine from mounting base and set to side.

7.3 ENGINE INSTALLATION

Figure 22
1. Block frame so it will not tip.
2. Position engine in frame.
3. Insert mounting bolts and tighten.
4. If equipped with electric start, install the starter.
5. Re-attach any brackets for chute/deflector controls.
6. Install pulleys on engine shaft.
7. Install belts. For instructions, see "Attachment
Drive Belt Replacement" on page 15 and "Traction
Drive Belt Replacement" on page 16.
8. Adjust engine pulleys to align with attachment and
drive pulleys.
9. Tighten pulleys
10.Install belt cover.
11.Connect blower housing to frame.
4
1. Frame
2. Engine
3. Engine Shaft
4. Belt Cover
5. Belt Finger
5
6. Drive Pulley
7. Drive Belt
8. Attachment Pulley
9. Attachment Belt
10. Flat Washer
6
11. Locking Washer
7
12. Bolt
8 13. Engine Mounting Bolt
(typical of 4)
9
Figure 22
7 - 25
PS0330-1
)S7350