Service Manual

Removal (Fig. 1)
1. Park machine on a level surface, stop engine, en-
gage parking brake, and remove key from the ignition
switch.
2. Remove cap screws, flat washers, lock nuts, and
spacers that secure rubber coupling to pump hub (item
23).
3. Remove lock nuts that secure clutch adapter (item
17) to electric clutch.
4. Slide drive coupler, both rubber couplings, and
clutch adapter from machine as an assembly
. Locate
and retrieve two (2) spacers from between clutch adapt-
er and electric clutch.
5. Unplug clutch wire connector from machine wiring
harness.
6. Remove cap screw
, lock washer, and clutch retainer
from pump gearbox shaft.
7. Remove shoulder bolt that secures clutch leg to
gearbox.
8. Pull electric clutch from pump gearbox. Locate and
remove key and spacer from gearbox shaft.
Installation (Fig. 1)
1. Apply anti–seize lubricant to pump drive gearbox
shaft. Place key and spacer onto shaft.
2. Align key slot in clutch with key in gearbox shaft and
align mounting leg of clutch to threaded hole in gearbox.
Slide
clutch onto gearbox shaft.
3. Install shoulder bolt through leg of clutch and into
gearbox.
Tighten shoulder bolt. After shoulder bolt is
tightened, make sure that leg of clutch does not bind on
bolt.
4. Install cap screw, lock washer
, and clutch retainer to
secure clutch to gearbox shaft. Torque bolt 27 ft–lb (36.6
N–m).
5. Connect clutch wires to machine wiring harness.
6. Position drive coupler assembly (with both rubber
couplings
and clutch adapter) between pump hub and
electric clutch.
7. Install two (2) spacers between clutch adapter (item
17) and electric clutch. Secure clutch adapter to clutch
with two (2) lock nuts.
8. Secure rubber coupling to pump hub (item 23) with
spacers, flat washers, cap screws,and lock nuts. Make
sure that cap screw threads extend through lock nut.
Pump Drive Electric Clutch Service
NOTE: For clutch electrical testing information, see
Pump Drive Electric Clutch in the Service and Repair
section of Chapter 5 – Electrical System.
The pump drive electric clutch used on the Multi Pro has
sealed,
non–serviceable bearings. If bearing failure oc-
curs, clutch replacement is necessary.
Spray
System
Multi Pro 1200/1250
Page 6 – 9
Spray System