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Global Garden Products Lawn Mower 92 92 Hydro Instructions Manual
Global Garden Products Lawn Mower 92 92 Hydro Instructions Manual
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4/2005 When assembly is completed … Refit the fuel tank [ see 5.4]. Tightening torque 5Nut for ring gear ............................. 45 ÷ 50 Nm 92 4.7.1 STEERING ALLOWANCE ADJUSTMENT 2 / 2 WORKSHOP MANUAL page from 1997to •••• © by GLOBAL GARDEN PRODUCTS
4.8 STEERING GEOMETRY ADJUSTMENT The correct steering geometry is given by the val- ues of the interacentre distancexis between the joints of the tension rod and the wheel connecting rod. Any faults caused by knocks or accidents result in reduced driving precision and increased wear on the tyres. These can be overcome as fol- lows: –uneven or excessive wear on the front tyres = toe-in adjustment –the lawn-tractor does not maintain a straight line when the steering wheel is straight = adjustment of tie-rods. NOTE Before any other action, check that the joint fasten- ings have not become loose. A) Toe-in adjustment An exact toe-in is achieved with an centre distance of 461 mm which is measured between the centres of the articulated joints (1)of the wheel connection rod (2). If a different distance is found, dismantle one or both the joints and screw the necessary amount down or up on the rod. On assembly, fully tighten the locknuts (3)and the fastening nuts (4) of the joints. B) Adjustment of the steering wheel Firstly check the toe-in (point “A”) and align the front wheels. If the steering wheel is not straight, dismantle the articulated joint (5)and screw down or up on the tie-rod (6)for the necessary amount. On assembly, fully tighten the locknuts (7)and the fastening nuts (8)and check that the tie-rod, in its travel, does not interfere with parts or acces- sories of the engine even with the equaliser (9) angled in both directions. Tightening torques 3 - 7Locknuts for articulated joints .... 25 ÷ 30 Nm 4 - 8Nuts for articulated joints ............ 45 ÷ 50 Nm 3/2002 576 89 2 3 1 4 1 461 mm 2156 92 4.8.0 STEERING GEOMETRY ADJUSTMENT 1 / 1 WORKSHOP MANUAL page from 1997to •••• © by GLOBAL GARDEN PRODUCTS
© by GLOBAL GARDEN PRODUCTS 92 4.9.0 CHECKING BLADES ALIGNMENT 1 / 1 WORKSHOP MANUAL page from 1997to •••• 4.9 CHECKING BLADES ALIGNMENT Excessive vibration when cutting and an uneven cut can be due to misalignment of the blades owing to deformation of the flanges or the shafts as a result of accidental knocks. Put the lawn-tractor into a vertical position [see 2.4]. Always wear strong gloves when handling the blades. With the blades disengaged, firmly hold each blade and bring the cutting edges together in the various positions possible (A-B; A-B1; A1-B1; A1-B). At each position they should be aligned to within 2 mm. If higher amounts are found, check that the blades are not distorted. If this is not the case, check the supports or the shafts for the blades [see 6.9], replacing if necessary, and check the condition of the point where the flange rests on the cutting deck. IMPORTANT! Always replace damaged blades and do not attempt to repair or straighten them. Always use manufacturer’s genuine spare parts! 3/2002 A A1B B1 < 2 mm
4.10 SHARPENING AND BALANCING OF THE BLADES A badly sharpened blade causes grass to become yellow and reduces grass collection capability. If not balanced, excessive vibration can be caused during use. Always wear protective gloves when handling the blades and protect eyes when sharpening. For removing a blade it must be firmly held and the central screw (1)undone, bearing in mind that: –the screw on the left blade (1a)is unscrewed anti-clockwise –the screw on the right blade (1b)is unscrewed clockwise. A) Sharpening Always sharpen both cutting edges of the blade (2) using a medium grade grinder. Sharpening must only be done from the rounded side, removing as little as possible. The blade is to be replaced when the cutting edge has worn down to 10 mm. B) Balancing Using the appropriate equipment, check the bal- ance to make sure that there is a maximum differ- ence of 2 grams between one side and the other. On reassembly, be sure to position the right and left blades correctly, as well as that the splines (3)are correctly positioned on the shafts, the wings on the blades are turned towards the inside of the deck and that the concave part of the spring disc (4)is pressing against the blade. Tightening torques 1aScrew for left blade ...................... 45 ÷ 50 Nm 1bScrew for right blade .................... 45 ÷ 50 Nm 1b4 1a422 3 2 4 1a - 1b 3/2003 2 2 max 10 mm 1a2 1b 2 92 4.10.1 SHARPENING AND BALANCING OF THE BLADES 1 / 1 WORKSHOP MANUAL page from 1997to •••• © by GLOBAL GARDEN PRODUCTS
© by GLOBAL GARDEN PRODUCTS 92 5.1.1 REMOVAL OF FRONT HOOD 1 / 1 WORKSHOP MANUAL page from 2001to •••• 5.1 REMOVAL OF FRONT HOOD The removal of the front hood gives greater accessibility to: –the engine and its accessories –the silencer and protection devices ➤In models with lights: Disconnect the connector (1). The hood can be secured in two ways. A) Fixing with springs Unhook the two fastener springs (2)and pull out the pins (3). B) Fixing with a split pin Take out the split pin (4)from the right-hand side and remove the hood by moving it to the right. 4/2005 4 1 23
5.2 REMOVAL OF THE WHEEL COVER Removing the wheel covers gives access to: –the mount for the lever to raise the deck; –the supports of the footboards. Take off the spring (1)which holds the battery, tak- ing care to prevent it accidentally short-circuiting. Disconnect and remove the battery (2). ➤In mechanical drive models: unscrew the knob from the blade engagement lever (3)and the knob from the gear lever (4). ➤In hydrostatic drive models: unscrew the knob from the blade engagement lever (3)and the drive pedal (5). Remove the caps (6)from the springs and undo the screws inside (7). Remove the seat after having taken out the two pins (9). The cover (10)is held by a screw at the front (11), four screws (12)at the bottom of the dashboard 10 11 5 9 9 4 3 12 6 7 4/2005 92 5.2.1 REMOVAL OF THE WHEEL COVER 1 / 2 WORKSHOP MANUAL page from 2003to •••• © by GLOBAL GARDEN PRODUCTS
support and six screws (13)under the side foot- board. The two back ones (13a) of these last screws have a washer. When the cutting height lever has been moved to position «7» and the engage lever to the «blades engaged» position, it is possible to remove the cover. 4/2005 10 1313 13a 12 92 5.2.1 REMOVAL OF THE WHEEL COVER 2 / 2 WORKSHOP MANUAL page from 2003to •••• © by GLOBAL GARDEN PRODUCTS
© by GLOBAL GARDEN PRODUCTS 92 5.3.0 REMOVAL OF THE COLLECTOR CHANNEL 1 / 1 WORKSHOP MANUAL page from 1997to •••• 5.3 REMOVAL OF THE COLLECTOR CHANNEL Removing the collector channel gives access to: – the deck lifting cable; – the small side wheels of the drive belt; – the control rod for engaging drive and the micro- switch to signal «neutral» ( ➤in hydrostatic drive models). Undo the two screws (1)the hold the support for the ‘sack full’ signal microswitch, undo the inside screws (2)fixing onto the rear plate and take out the channel (3). When reassembling, fully tighten the screws (2)and make sure that the collector channel moves freely. Tightening torque 2Screws for collector channel .......... 25 ÷ 30 Nm 3/2002 3 1 1 23
5.4 REMOVAL OF THE FUEL TANK Removing the fuel tank gives access to: –the steering wheel column and the ring gear; –the brake adjustment spring (➤in mechanical drive models) ; –the accelerator fastening screws. Completely empty the tank through the pipe at the entry to the fuel filter (1), taking care not to spill fuel . Remove the electronic card, take off the lower part of the protective cover (2). Loosen the screw (3)holding the support (4)and lift the tank until the two pegs (5) come out of the lower support. On reassembling, remember to fit the clamp back on the fuel pipe and check that it does not leak. 4/2005 4 3 5 2 1 92 5.4.1 REMOVAL OF THE FUEL TANK 1 / 1 WORKSHOP MANUAL page from 1998to •••• © by GLOBAL GARDEN PRODUCTS
5.5 REMOVAL OF THE ENGINE Since there are different types of drive, the stages described here refer to those shared or similar in all types of engine. Remove the front hood [see 5.1]. Disengage the blades to loosen the belt. In order to have better access to the parts concerned, also the drive belt should be loosened. This is done by ... ➤In mechanical drive models: engaging the parking brake ➤In hydrostatic drive models: loosening the nut (1)of the stretcher. Loosen the screw (2), unfasten the safety pin (3) and move the fork to the side (4). Turn the belt shifter (5) forward until the belt (6)is released from the pulley (7). Undo the central screw (8)and take out the pulley (7) from the shaft. If it is difficult to take out, use the special extractor # code 60253000/0 inserted into the holes (9)of the pulley, but do not completely undo the screw (8)so that the extractor puts pressure on the head of the screw and does not damage the threaded hole of the shaft. Remove the protection from the exhaust (10)and disconnect the cable control from the accelerator and all the electrical wires. Detach the fuel line pipe, taking care not to spill fuel . 10 4/2005 87 9 5 76534 2 1 92 5.5.1 REMOVAL OF THE ENGINE 1 / 2 WORKSHOP MANUAL page from 2003to •••• © by GLOBAL GARDEN PRODUCTS