davemskinner
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Lifetime Member
Equipment
Sold ZD28F, Bought04 Grnd L4330 /frnt mnt snwblwer L2185, hted/AC cab, 2nd ZD28F
Greetings from a newbie.
I have a used ZD28F will 1800 hours on it. The left HST pump would get weak once the oil got warm. I have it apart and found the backing plate (see pics below) for the pump motor is scored. There appears to be no other defect. Since the part [K7021-39503 020 ASSY COVER PORTBLOCK] is $477+ shipping, I would like to have the face professionally reground. Will this work? It will thin the casting by about 6 thousandths (0.006) of an inch but I can see no reason why this won't work. Also, The cylinder that caused the scoring appears to be fine. However, it must have worn some.
As I study teies parts, I don't see where the worn plate will cause the leak by but I can find no other problem. I have the WSM manual but the english translation leaves a lot to be desired.
Any help will be greatly appreciated
I have a used ZD28F will 1800 hours on it. The left HST pump would get weak once the oil got warm. I have it apart and found the backing plate (see pics below) for the pump motor is scored. There appears to be no other defect. Since the part [K7021-39503 020 ASSY COVER PORTBLOCK] is $477+ shipping, I would like to have the face professionally reground. Will this work? It will thin the casting by about 6 thousandths (0.006) of an inch but I can see no reason why this won't work. Also, The cylinder that caused the scoring appears to be fine. However, it must have worn some.
As I study teies parts, I don't see where the worn plate will cause the leak by but I can find no other problem. I have the WSM manual but the english translation leaves a lot to be desired.
Any help will be greatly appreciated
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