7-30 Z Master Z400 Service Manual
7
MOWER DECKS/PTO
8. Loosen the jam nut under the rear support arm and
turn the adjustment bolt to get a measurement of 3-
1/8to3-1/4inches(79-83mm)(Fig.504).
Note: It is recommended that both sides of the
mower are adjusted the same distance.
9. Tighten the jam nut under the rear support arm and
tighten the bolt securing the chain to the rear support
arm.
10. Adjust the opposite side if needed.
Fig 504 g.57G001924
7. If the measurements at positions B or C are not
correct, loosen the bolt attaching the rear chain to
the rear support arm (Fig. 504).
1. Position the right blade front-to-rear (Fig. 505).
Fig 505 g.58G001041
2. Measure the right blade at the A location, from a
atsurfacetothecuttingedgeofthebladetip(Fig.
505).
3. Record this measurement.
4. Measure the right blade at the B location, from a
level surface to the cutting edge of the blade tip
(Fig. 505).
5. Record this measurement.
6. Themowerbladeshouldbe1/4to3/8inch(6to
10mm) lower at position A than at position B (Fig.
505). If it is not correct, proceed to the following
steps.
Note: Both of the front swivels need to be adjusted
the same amount to maintain equal chain
tension and side-to-side level.
1. Rear chain 5. Adjustment bolt
2. Rear support arm 6. Front swivel
3. Bolt 7. Front support arm
4. Jam nut
Adjusting the Front-to-Rear Mower Pitch
1. Measure here from 2. Measure at A and B
bladetoatsurface