Installing

Install Blower

c CAUTION: Avoid injury! Machine component or attachment is heavy. Use a safe lifting device or get an assistant to help lift, install or remove component or attachment.

NOTE: The blower assembly weighs approximately 32 kg (70 lb).

MX25129

1. Lift discharge chute (A) and locate front mounting bracket (B).

MX25078

2. Insert front pivot pin (C) of blower into front bracket (B).

MX47239

MX47237

3. Install front lynch pin (D).

4. Rotate the blower in position so that the bottom blower plate (E) rests on top of the mounting bracket (F) at the rear of the blower. When mounting on 48 inch mower, blower plate does not rest on top of the mounting bracket.

5. Mounting bracket (G) should meet anti-scalp wheel assembly (H) or deck.

6. Secure in place with the mode change release handle (I) and M8x25 carriage bolt (J).

MX25069

Picture Note: Parts have been removed for clarity.

7. Use tension lever (K) to allow belt to slip over sheave (L).

8. Install correct blower belt shield for application.

Cutting Hose to Length

1. Cut hose to the length listed below for your mower deck size. Hose may already be correct length for some machine configurations, see chart to verify hose length. Edges of the hose may be sharp after cutting, file to smooth the edges if needed.


Deck Size	DFS MCS
48”	950mm (37-1/2 in.)
48” MOD	950mm (37-1/2 in.)
54”	990mm (39 in.)
54” MOD	990mm (39 in.)
60”	990mm (39 in.)
60” MOD	1030mm (40-1/2”)
72”	1100mm (43-3/8”)

Installing Chute

MX47241

MX27539, MX27540

Picture Note: Hex head bolt used in previous production models, J-bolt used in current production models.

1. Connect hose (A) to upper chute assembly (B).

2. Secure hose to upper chute with bolt and knob (C).

3. Connect lower end of hose (A) to lower chute (D).

4. Secure hose to lower chute:

• Secure hose to lower chute with J-bolt (E), washers (F) and knob (G).

• Secure hose to lower chute with hex head bolt (H) and knob (I).

5. Lift and hold open exhaust flap on blower.

6. Slide lower chute (D) completely onto blower outlet (J), making certain pin (K) is fully lowered, securing lower chute onto blower.


IMPORTANT: Avoid damage! Do not over tighten knobs. Only tighten to secure hose assembly in place.

7. Tighten knobs on upper and lower chutes to hold hose assembly in place.

Installing Ballast

c CAUTION: Avoid injury! Machine can become unstable when operating with attachment. Ballast is required when the attachment is installed.

When the attachment is removed, also remove any ballast that was added to the machine.

Use only attachments and accessories recommended by the manufacturer.

NOTE:

• Ballast is not included with this kit but is required for safe operation. Refer to chart for specific requirements and see your authorized John Deere dealer for ordering.

• If installed, remove rear side weights from mower. Side weights are not compatible with the MCS.

• Weight bracket should remain on machine when operating with the MCS even if chart shows that no weights are required.

• Only Z800A with 60 and 72 in. decks: An additional suitcase weight is required on the machine if front pneumatic caster tires are installed in place of the original standard semi-pneumatic tires.


Model	Deck	Required Weights
Z820A	48 in.	5
Z820A	48 in. Mulch on Demand	5
Z820A	54 in. Mulch on Demand	5
Z820A	60 in.	5
Z830A	54 in. Mulch on Demand	5
Z830A	60 in.	5
Z830A	60 in. Mulch on Demand	5
Z830A	72 in.	4
Z840A	54 in.	5
Z840A	60 in.	5
Z850A	60 in. Mulch on Demand	5
Z850A	72 in.	4
Z860A	60 in.	5
Z860A	60 in. Mulch on Demand	5
Z860A	72 in.	4

NOTE: If your model is not listed above, look in your power unit manual for information regarding a needed ballast.

Install the proper front ballast to help counterbalance the total weight of the bagger. Remove ballast when the bagger is removed. This will ensure proper operation of the machine when not bagging.

Installing Weight

NOTE: See Ballast Chart for the proper weight requirements for your machine.

MX25039

1. Install suitcase weight(s) (A) onto bracket.

NOTE: If the number of required weights is an odd number, add the odd number weight to the left side of machine (or opposite side of blower) to offset the weight of the blower assembly.

2. Slide the rod (B) over weight(s) to lock down.

3. Install locking pins (C) on rod.

Adjusting Deck Lift Spring Tension

NOTE: Deck lift springs are set at factory specs. When installing the MCS, the springs should be adjusted to the following specifications. When the MCS is removed, the springs should be set back to the original factory settings. Refer to machine operator’s manual for the correct factory settings without the MCS installed.

Check Spring Tension

1. Park machine on a hard, level surface.

2. Stop engine and lock park brake.

3. Raise the mower deck to the transport position.


IMPORTANT: Avoid damage! Both deck lift spring assemblies must be adjusted equally. Do not over-tension the deck lift springs. If the springs are compressed too tightly, the mower deck will float too freely. Decrease deck lift spring tension if operating in rough terrain.

NOTE: If your lift assist does not look like the assembly below, look at your power unit operator’s manual for adjustment procedure.

MX25995

4. Measure spring length (A).


Deck	Recommended Setting with MCS Installed
72 Inch	0 cm (0.0 in.)
60 Inch	5.5 cm (2.1 in.)
54 Inch	6.5 cm (2.5 in.)
48 Inch	0 cm (0.0 in.)
60 Inch Mulch on Demand	2 cm (.75 in.)
54 Inch Mulch on Demand	4.5 cm (1.75 in.)
48 Inch Mulch on Demand	5.5 cm (2.1 in.)

While looking from rear of machine:

• Turn hex nut (B) clockwise to increase deck lift spring tension.

• Turn hex nut (B) counterclockwise to decrease deck lift spring tension.

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