MBW GPR77 - Manual (Page 13)

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2. Remove the (4) 3/8” flanged capscrews securing the
rollcage to the engine deck and remove the rollcage.
3. Remove throttle cable from engine. Be careful not to
loose throttle cable clamp.
4. Remove the (4) 1/4” hex head capscrews securing
the beltguard to the side plate on the engine deck and
remove the beltguard and belt.
5. Now is a good time to inspect and consider replacing
the v-belt.
6. Remove the (4) hex head capscrews securing the
engine to the engine deck and remove the engine.
Exciter Removal
1. Let the machine cool and clean all visible debris from
machine before disassembly.
2. Remove the (4) 1/4” hex head capscrews securing
the beltguard to the side plate on the engine deck and
remove the beltguard and belt.
3. Now is a good time to inspect and consider replacing
the v-belt.
4. Remove the (4) 1/2” hex head capscrews securing
the engine deck to the base plate.
5. Disconnect the shifter lever from the handle by
removing the (2) 1/4” socket head capscrews.
6. Separate the engine deck and base plate.
7. Disconnect the shifter cable from the actuator
assembly and exciter housing by removing the 1/4”
bolt and jam nut securing the ball joint to the actuator
lever and removing the (2) hex head capscrews
securing the angle bracket to the exciter assembly.
(Refer to Figure 1 Shifter Cable, page 7..)
8. Now is a good time to inspect and consider replacing
the shock mounts.
9. Remove the (6) hex nuts and washers securing the
exciter assembly to the base plate and remove the
exciter.
Exciter Disassembly
Refer to Exciter Assembly, page 20.
CAUTION
Collect and dispose of all hazardous materials
according to local legislation.
1. Clean the housing and drain the oil as described in
the EXCITER OIL CHANGE PROCEDURE section
of this manual.
2. Remove the screw (item #32) securing the washer
(item #23) to the input shaft (item #25) and remove
the washer.
3. Remove the pulley (item #26) and key (item #4 or
#28).
4. Remove the (2) 5/16” flanged capscrews (item #31)
securing the stone guard to the housing and remove
the stone guard (item #27).
5. Remove the (4) flanged cap screws (item #31)
securing the actuator assembly (item #22) and
separate it from the housing.
6. Orient the exciter so the cover is facing up.
7. Remove all (10) 5/16” flanged capscrews (items #34)
securing the cover to the housing.
8. Tap on the housing handles to loosen the cover and
separate it from the housing.
CAUTION
All internal components are attached to the cover,
so lift straight up!
9. Place the cover on the work surface with the shafts
oriented up.
10. Remove the cover gasket (item #13).
11. Remove the 5/16” flanged capscrew (item #33)
securing the shifter assembly (item #24) to the cover
and remove the shifter assembly.
12. Remove all (4) exciter weights (items #14, #19 and
#20).
NOTE: It may be necessary to heat the bolts (item #10)
to loosen the bond.
13. Remove the (2) large retaining rings (item #1) from
the exciter cover.
14. Invert the cover and place in a vise with the shafts
hanging freely and the cover laying flat.
15. Remove the (2) 5/16” capscrews and brass washers
(items #30 and #35) from the bearing access holes in
the cover.
16. Use a 1/4” pin punch at least 2” long through the
access holes to press the bearings and shafts out of
the cover.
CAUTION
Alternate between the two access holes evenly to
prevent damage to the cover and bearings during
removal. Have an assistant hold the shafts during
removal to prevent dropping them.
17. Remove the (2) large retaining rings (item #1) from
the housing.
18. Remove the four (4) 5/16” capscrews and brass
washers (items #30 and #35) from the bearing
access holes in the housing.