Taylor TX180S, Maintenance Manual

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TX / TXH / TXB 180S - 400L (Rev. 4/23/07) TX / TXH / TXB 180S - 400L (Rev. 4/23/07) 22-12 22-12
Illustration 22-17. Illustration 22-17. Detecting Detecting Hydraulic Hydraulic Leaks Leaks
  Do Not Do Not use hands to check use hands to check
for hydr for hydr aulic leaks. aulic leaks. Because the Because the hydraulic hydraulic
system is under high pressure, leaks could system is under high pressure, leaks could
develop that can not be seen, but will pene- develop that can not be seen, but will pene-
trate the skin and possibly cause other serious trate the skin and possibly cause other serious
injuries. injuries. When checking When checking for hydrau for hydrau lic leaks, lic leaks,
wear heavy gloves and safety goggles, and wear heavy gloves and safety goggles, and
use a piece of cardboard or wood to find leaks use a piece of cardboard or wood to find leaks
(See Illustration 22-17). (See Illustration 22-17).
Manual Lowering Valve Operation Manual Lowering Valve Operation
The manual lowering valve should only be opened The manual lowering valve should only be opened
when normal lowering methods cannot be per- when normal lowering methods cannot be per-
formed. formed.
  Death or serious injury could Death or serious injury could
result from result from being crushed. being crushed. Do not all Do not all ow ow
anyone near the lift truck - certainly not anyone near the lift truck - certainly not
walking, standing under, or beside the load or walking, standing under, or beside the load or
lifting mechanism. lifting mechanism.
  Death or serious injury could Death or serious injury could
result from result from a runaway truck. a runaway truck. Apply the par Apply the par king king
brake, block the wheels in both directions to brake, block the wheels in both directions to
prevent movement of the truck and Lock Out & prevent movement of the truck and Lock Out &
Tag Out the truck. Tag Out the truck.
  Death or serious injury could Death or serious injury could
result from result from being crushed. being crushed. Do not Do not operate the operate the
COLLAR COLLAR
LOCK LOCK
PLATE PLATE
VALVE VALVE
STEM STEM
Illustration 22-18. Illustration 22-18. Manual Lowering Manual Lowering Valv Valv e e
Opening The Manual Lowering Valve (Illustration Opening The Manual Lowering Valve (Illustration
22-18). 22-18). Perform the Perform the following procedures following procedures to open to open
the manual lowering valve: the manual lowering valve:
1. 1. Rem Rem ove t ove t he s he s tem tem scr scr ew a ew a nd co nd co lla lla r r . .
2. 2. Re Re mo mo ve ve th th e l e l oc oc k p k p la la te te . .
3. 3. Mak Mak e sur e sur e no o e no o ne is ne is und und er / n er / n ear t ear t he ma he ma st, st,
carriage, or load lifting mechanism. carriage, or load lifting mechanism.
4. 4. Tu Tu rn th rn th e va e va lve lve stem stem count count ercloc ercloc kwise kwise 1/4 1/4 turn turn
until the notches on top of the valve stem align until the notches on top of the valve stem align
with the hydraulic fittings of the valve block with the hydraulic fittings of the valve block
(note position of valve stem in Illustration (note position of valve stem in Illustration
22-19) 22-19) . .
NOTE: NOTE: The only way The only way to stop the low to stop the low ering of the ering of the
load is by load is by closing the manual lowering closing the manual lowering valve. valve.
5. 5. Aft Aft er th er th e load h e load h as bee as bee n ful n ful ly lo ly lo wer wer ed, c ed, c los los e e
the manual lowering valve (refer to Closing the manual lowering valve (refer to Closing
The Manual Lowering Valve). The Manual Lowering Valve).
Closing The Manual Lowering Valve (Illustration Closing The Manual Lowering Valve (Illustration
22-18) 22-18) . . The manual The manual lowering valve lowering valve must be must be
closed and locked before operating the lift truck. closed and locked before operating the lift truck.
Perform the following procedures to close the Perform the following procedures to close the
manual lowering valve: manual lowering valve:
1. 1. Tu Tu rn the rn the valve valve stem stem clock clock wise wise 1/4 t 1/4 t urn un urn un til t til t he he
notches, located on top of the valve stem, notches, located on top of the valve stem,
point toward the sides of the valve block (note point toward the sides of the valve block (note
when setting pressures, allow any portion of when setting pressures, allow any portion of
your body to be positioned in front of the your body to be positioned in front of the
relief. relief. It is possi It is possi ble that the ble that the relief could relief could be be
blown loose with great force which could blown loose with great force which could
cause severe bodily injury or death. cause severe bodily injury or death.
  Fluid passing over a relief Fluid passing over a relief
generates heat; should a relief be blown loose, generates heat; should a relief be blown loose,
hot, pressurized fluid will be forced hot, pressurized fluid will be forced from the from the
open port. open port. This could This could cause severe bodi cause severe bodi ly ly
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