Chopper Jackshaft Belt—Replacing (S680 and S690)

CAUTION:

H98498-UN-08OCT10

A - Nuts

B - Chopper Jackshaft Belt

C - Cap Screws (4 Used)

D - Isolator Strap

E - Belt Trap

F - Unloading Auger Drive Belts

Loosen nuts (A) to relieve belt tension from chopper jackshaft belt (B).

Remove cap screws (C) and isolator strap (D).

Remove pump assembly and support out of the way.

Remove cap screws from belt trap (E).

Remove and retain unloading auger drive belts (F).

With Hydraulic Pump:

H98502-UN-20OCT10

A - Hardware

B - Strap

C - Nut

D - Cap Screw (2 Used)

E - Shield

F - Chopper Jackshaft Belt

Remove nut (C) from pump assembly bracket.

NOTE: Verify that washers and isolator remain in place when removing. Install previously removed nut to retain washers and isolators in place when assembly is removed.

Remove cap screws (D) from pump assembly.

Remove shield (E) and pump assembly bracket.

Support shield and pump assembly bracket out of the way.

Remove jackshaft belt (F) from upper and lower sheaves.

Install replacement belt in reverse order.

Align pump assembly with sheave and tighten cap screws to specification.

Item	Measurement	Specification
Cap Screws	Torque	80 N·m (59 lb.-ft.)

NOTE: Align shaft key on pump assembly with keyway in sheave. Verify that washers and isolators remain in place on pump assembly bracket.

Install shield and pump assembly bracket and retain with nut.

Install strap on both sides of shield and retain with hardware.

H98503-UN-20OCT10

A - Unloading Auger Drive Belt

B - Belt Trap

C - Isolator Strap

D - Cap Screws (4 Used)

E - Nut

F - Washer

G - Gauge

H - Lock Nut

Install belt trap (B) and retain with cap screws.

Align pump assembly with sheave.

Install isolator strap (C) and tighten cap screws (D) to specification.

Item	Measurement	Specification
Cap Screws	Torque	80 N·m (59 lb.-ft.)

Tighten nut (E) until washer (F) is positioned between end of gauge (G) and bottom of step. Tighten lock nut (H).

Without Hydraulic Pump:

H98500-UN-08OCT10

A - Hardware

B - Strap

C - Shield

D - Chopper Jackshaft Belt

Remove jackshaft belt (D) from upper and lower sheaves.

Install replacement belt in reverse order.

Align shield with bracket holes.

Install strap on both sides of shield and retain with hardware.

H98503-UN-20OCT10

A - Unloading Auger Drive Belt

B - Belt Trap

C - Isolator Strap

D - Cap Screws (4 Used)

E - Nut

F - Washer

G - Gauge

H - Lock Nut

Install belt trap (B) and retain with cap screws.

Align pump assembly with sheave.

Install isolator strap (C) and tighten cap screws (D) to specification.

Item	Measurement	Specification
Cap Screws	Torque	80 N·m (59 lb.-ft.)