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18. Double check the height and levelness of the Cartridge relative to the ground (305 mm
±25 mm [12 ± 1”]). If the Cartridge is not level, adjustment can be made as described under
Item 13 (see Figure 6 and 7) using 13 mm [1/2”] and 6 mm [1/4”] thick shims provided.
19. Plug in the Cartridge and Backup Plugs as well as the pump’s battery cable (to the positive
[+] terminal) and verify that all turn/stop/tail lights are working properly.
20. Check location of all hydraulic and electrical lines to make sure they will not be damaged
during raising and lowering of Cartridge.
21. The pump reservoir was filled at the factory with Dexron III hydraulic fluid (approximately 3
quarts). Remove the metal plug and check to see if it is full. Insert the plastic breather cap in
the filler hole and be careful not to cross-thread it. Read the Operating Instructions, then
cycle the system up and down several times to relieve air from the system. If necessary
adjust the bleed-down rate using the flow control valve. Cartridge should bleed down from
90 degrees to horizontal in 15-30 seconds. (Refer to Hydraulic Assembly drawing).
Caution:
Do not run down truck battery.
IMPORTANT
22. Make sure the latch pin mechanism smoothly locks the Cartridge in the 90 degree “UP”
position. (Note: Problems here often can be corrected by varying the length of the large 3”
bore hydraulic cylinder by unscrewing the clevis one or two revolutions). The sequence
pressures (12.4 MPa [1800 psi]) are pre-set at the factory and usually do not require
adjustment. Turning the adjusting screws “in” will INCREASE the sequence pressure.
Turning the adjusting screws “out” will DECREASE the sequence pressure.
Caution:
Each time the operator elevates the Cartridge, he/she should verify
that both Latch Pins are fully locked before allowing anyone behind the Cartridge.
23. Check tightness of all fasteners. Double check height and levelness of Cartridge.
24. The TMA system is now ready for use. To achieve intended operation, all TMA users should
be given operating and safety instructional training as given in this Manual and as required
by the specifying highway authority.
Figure 8
305 mm ±25 mm [12” ±1”]
LOCATE SHIMS HERE
355 mm [14”] MINIMUM
305 mm ±25 mm [12” ±1”]
890 mm ±5 mm [35” ±1/4”]
