17MAINTENANCE
Use only a qualified mechanic for any adjustments, disassembly or any kind of repair .
WARNING: TO AVOID PERSONAL INJURY, ALWAYS TURN MACHINE OFF, MAKE SURE ALL MOVING PARTS COME TO A COMPLETE STOP.
DISCONNECT SPARK PLUG WIRE
BEFORE SERVICING UNIT.
ENGINE: See engine manufacturer operator's instructions.
DEBRIS BAG: See page 6.
RECONNECT SPARK PLUG WIRE,
GUARDS, BAG, CAPS AND / OR
HOSE BEFORE STARTING ENGINE.
17.1IMPELLER REMOVAL
1.Wait for engine to cool and disconnect spark plug.
2.Drain fuel and oil from the engine.
3.Remove bag, quick release, upper handle and clutch cable from upper handle. Do not kink, stretch, or break control cables, control housings, or end fittings while removing handles.
4.Remove chain guard, chains and jackshaft assembly (see page 9, Drive Chain).
5.Invert and support machine with engine not touching ground to prevent damage to recoil starter.
6.Disassemble housing by removing six (6) lock nuts and washers from nozzle frame, (2 are inside of nozzle opening).
7.Remove impeller bolt and lock washer.
8.Lift impeller upward. If impeller slides freely, proceed to (step 11).
9. Place two crowbars between impeller and housing on opposite sides. Pry impeller away from engine until it loosens. Using a penetrat- ing oil can help loosen a stuck impeller.
10.If the impeller does not loosen, obtain a 1” (25.4mm) longer bolt of the same diameter and thread type as the impeller bolt.Thread longer bolt by hand into the crankshaft until bolt bottoms. Using a suitable gear or wheel puller against the bolt head and the impeller
11.Remove engine mounting screws, bolts, and nuts as required.
12.When impeller is free of the engine shaft, lift impeller and housing assembly off engine. Align impeller with opening, and diagonally lift impeller out of housing.
13.Using a new impeller bolt and lockwasher, reinstall new impeller in reverse order.
14.Tighten impeller bolt.Torque impeller bolt to 50 Ft. Lbs. (68 N.m) (see item 51 on page 11).
15.Reinstall engine onto housing in reverse order of removal.
16.Invert machine back onto all 4 wheels.
17.Reinstall jackshaft assembly components onto housing in reverse order of removal, properly tighten chains and adjust clutch (see Drive on page 9).
18.Reinstall spark plug wire.
Part No. 890311 | Page 8 of 12 | Form No. F010396C |
