10
ROTARY
MOWER
ASSEMBLY INSTRUCTIONS
1. Remove the mower from the shipping crate.
2. Remove top shield.
3. Install both left and right hitch arms as shown in Figure 7. Torque the 1/2" attaching bolts to 85 ft. lbs.
Serial Numbers:
75-70855: 1001-1493, 75-70860: 1001-4727, 75-70865: 1001-1969
Install the 1/2" locknut, which holds the two hitch arms together. Tighten and back off 1/2 turn. This
allows some independent movement of the hitch arms.
Serial Numbers:
75-70855: 1494 & Up, 75-70860: 4728 & Up, 75-70865: 1970 & Up
Install the 1/2" nut and the 1/2" lockwasher, which holds the two hitch arms together. Torque to 85 ft. lbs.
4. Be sure that the mower main drive belt is installed correctly on all pulleys. Check spring-loaded idler
arm position. Choose a mounting hole in the deck which allows the idler arm to lean toward the drive
shaft, with the spring attached. Fasten spring to chain and idler arm as shown on Page 16.
Serial Numbers:
75-70855: 1001-1493, 75-70860: 1001-4727, 75-70865: 1001-1969
Choose a chain link that stretches spring to an overall length of 8-9 inches.
Serial Numbers:
75-70855: 1494 & Up, 75-70860: 4728 & Up, 75-70865: 1970 & Up
Choose a chain link that stretches spring approximately 1" on 75-70860 or 1-1/2" on 75-70855 &
75-70865.
5. Check bolts mounting spindles to the deck. Torque should be 35-40 ft. lbs.
6. Check blade bolts. Torque should be 75 - 85 ft. lbs.
7. Check 1/4" cap screws on pulley bushings (Figure 1, Item 9). Torque should be 95 inch pounds.
Tighten these cap screws in alternating sequence 10-12 times to assure equal torque on all cap
screws.
8. Reinstall the top shield.
9. Remove 1/2" locknut on height adjustment lever and position correctly as shown on Page 12. Replace
locknut.
10. Remove the drive pulley shield and install the proper drive belt for the power unit. Replace shield.
11. Attach mower to power unit. See Page 11 for installation instructions. See Pages 6 & 7 for safety
instructions and Page 12 for operating instructions.
To Next Page
Loading...
Need help?
General
