Discussion:
Forks drifting down

This is a 45RRTT high bay reach truck. Forks are drifting approx 5" in 5 mins. Its not leaking externally anywhere, which rules out the cylinders. Cylinders are displacement type cluster cylinders. I removed holding valve threaded into valve block and inspected visually. Seems OK. Removed return line at tank with forks raised and still no fluid. The forks are still drifting and I don;t know where the fluid i going? Any guesses??
  • Posted 5 Dec 2008 11:08
  • By Davie
  • joined 5 Dec'08 - 26 messages
  • Ontario, Canada
Showing items 1 - 3 of 3 results.
I eventually found the problem and you are exactly right. Flow control valve $700.00 piece of aluminum.,. Hehe
thanks anyways..
  • Posted 2 Jan 2009 08:31
  • By Davie
  • joined 5 Dec'08 - 26 messages
  • Ontario, Canada
Check the flow control valve. Raise the forks. Go to the hyd tank, take off ( carefully ) the little plastic hose that goes to the top of the tank at the return and see if there is a small flow of oil. If so the flow control valve is junk ( internally by-passing).
  • Posted 28 Dec 2008 11:21
  • By roadtek
  • joined 4 Dec'07 - 123 messages
  • Massachusetts, United States
Its not going anywhere, the packing is bypassing
  • Posted 12 Dec 2008 23:04
  • By marty_b
  • joined 12 Dec'08 - 4 messages
  • Ohio, United States

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

PREMIUM business

Lift Tek Elecar
Global leader in the design and manufacture of masts, carriages, integral sideshifters & fork positioners.
Global Industry News
edition #1236 - 26 June 2025
As June comes to a close, the month when our sector recognises National Forklift Safety Day , the United Kingdom’s Association of Industrial Truck Trainers (AITT) has issued a timely reminder of the need to ensure any staff training is fully accredited... Continue reading
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Upcoming industry events …
July 9-10, 2025 - Birmingham, United Kingdom
October 21-23, 2025 - Panama City, Panama
Fact of the week
Sourdough bread contains Lactobacillus reuteri, a probiotic bacteria. During pregnancy and breastfeeding, these bacteria can travel from the mother's colon to her breast tissue and be passed to the infant through breast milk. It offers various health benefits, including potential protection against breast cancer.

PREMIUM business

Hangzhou Maxlion Machinery Equipment Co., Ltd
3G Standard, Good Products, Good Price, Good Service.
Latest job alerts …
Evansville, IN, United States
St. Louis, MO, United States
Uxbridge, Canada
Daleville, IN, United States
Fact of the week
Sourdough bread contains Lactobacillus reuteri, a probiotic bacteria. During pregnancy and breastfeeding, these bacteria can travel from the mother's colon to her breast tissue and be passed to the infant through breast milk. It offers various health benefits, including potential protection against breast cancer.